Quality to reasonable prices!
MODULAR FLOATING DOCK SYSTEM for aquatic sports and aqua culture
25 years experience in "state of the art" flotation
engineering worldwide, together with cutting edge technology and the most advanced
production techniques are the base for the new, extremely versatile "
CIRCULAR NETCAGES for all conditions
We supply a wide range of single, double and triple ring cage collars, using black high density polyethylene (HD-PE 100) pipes in sizes from 200 to 500 mm Ø, optional mounted with either dip galvanized steel or injection molded plastic brackets (mounted usually every 2-3 m). All build with heavy gauge handrail and upright pipe (110-160 mm Ø) to resist deformation. The tailor-made circular cages with a diameter from 10-60 m (32-189 m circumference) can be prepared for all types of weather and sea conditions from sea bay to offshore sites, for industrial farming of various fresh- and seawater fish species (i.e.: Kingfish, Cobia, Tuna etc.). A safety chain inside the outer pipe ring and dividing plates welded inside the inner pipe ring, are available for safety reasons. A full circumference walkway decking is available optionally. A bird net stand, a dead fish collector and sinker tube pipe are available as accessories. The cage pipes are shipped in parts and are welded on site. The following diameters are recommended:
Square cages of any size we produce with our Maritime Technic - Pontoon System
ILLUMINATED NET CAGES for the fingerling production with natural zooplankton
years' experience in the field of global plankton research and fingerling production with
natural plankton and years of tests under different environmental conditions in marine and
fresh water, are the basis of the new "UWG- Solar cage system". The production
method is based on plankton feeding in the natural environment like: lagoons, bays,
fjords, lakes and large ponds, by means of attracting the organisms using a lamp located
in the center of fine meshed submerged nets. Mainly Copepods and Cladoceres - but also a
variety of other zoo plankton are photo sensitive and steadily swarm into the cages
towards the light source. The net cages 2x2x2 m (8 m3) are manufactured from highly
resistant mono filament polyester fabric (with mesh sizes 0,3 to 1,8 mm), is fitted with a
zipper for easy access and a conduit for the electric cable. The net cage is stretched
onto a strong stainless steel or aluminum frame. An efficient solar generator is supplied
for remote site operation. An electrical transformer can be supplied in order to reduce
voltage to safer levels for use with water. Depending on the zoo plankton populations, the
fish stocking density (from the fry stage to fingerling size of 5 cm length) can come to
5.000 Ind./m3 and survival rates of more than 90 % have been achieved with various marine
and freshwater fish species.
UNDERWATER LAMPS to increase growth and delay maturity
This new underwater lamps with LED (Light Emitting Diode) are especially energy saving and have a long service life (approx. 30,000 hours). They are used successfully in both fresh- and seawater, either in the night to attract various aquatic organisms (like zooplankton or squid), or during the winter for the simulation of daylight (24 h/day) to delay maturation and increase growth (up to 10-30 %) in several fish species (like Salmon or Cod etc.). The professional lamps are available with different light colors: blue (approx. 40 lm/W), yellow (approx. 60 lm/W), green (approx. 80 lm/W), or white (approx. 100 lm/W = Lumens/Watt), whereby optimal to attract zooplankton (copepods, phyllopods) is blue light (around 450 nm), to attract squid, shrimp and fish in seawater is green light (around 500 nm), and to attract fish in freshwater is yellow light (around 600 nm). To simulate daylight, mainly blue or white light is used, whereby blue light penetrates furthest in water but white light comes closest to the natural light spectrum and can be used for all or general purposes. The recommended power in white LED light (4,000-6,000 Kelvin) is about 1-3 Watt/m2 of the holding unit (tank or cage). The self-sinking and water-proof (IP68) lamps can be used for a water depth up to 10 m (1 bar) and a water temperature up to 30 °C. They are made from high quality plastic and stainless steel (AISI316), with LED's (SMD 3528) placed on 4 sides for a 360 degree lighting angle, which reaches up to 5 m (depending on water turbidity). This submersible lamps are delivered complete with a fixed cable (5 m) and are available for 12 V/DC with two crocodile clips (the 4 larger models are optionally also available for 220 V/AC with a transformer).
140 W 200 W 300 W 400 W
420 pc. 600 pc. 840 pc. 756 pc. Size (ØxL)
8x37 cm 8x39 cm 8x46 cm 8x48 cm
2.0 kg 2.5 kg 2.6 kg 2.8 kg
NET CLEANING SYSTEM with high pressure
maintain a flow of oxygenated water through the nets, that keeps them clean with
minimal disturbance and no need to remove the fish from the pens. It's construction
and design make the washers head working toward the net against its own high pressure
water stream and can be used on all types of nets and cages. The netwasher
loosen and pulverize, with its high pressure water stream, algae growth, food remains and
other fouling, which in turn will drift away by the current. The single head disk is
easily used, the dual head disk is for faster cleaning.
POLYMER COATED POLYESTER NETS for cages
This special polymer (PVC) coated polyester (PET) net is very strong and stable, but also flexible. The nets are 100 % stronger than conventional nylon nets, are highly UV-resistant, suitable for seawater and need no antifouling. They need 90 % less maintenance and have fewer escapes than nylon nets and save a lot of total operation costs. The live-time of this nets with continuous use in fresh water is up to 30 years. The material is available on coils with a width of 3,6 m with a mesh size of 5 mm, and 5 m wide with a mesh size of 20 to 40 mm. With a weight of 450 to 780 g/m2 the cages need no lead sinkers. We deliver finished cages or also the material on coils.
All data on average (+/- 10 %).
NYLON NET MATERIAL for cages and fishery
The production is based on a complete process, from the raw material, passing the different manufacturing phases like: matching, weaving, cutting and packing. Our aim is to assure a quality product to the customer. Woven in high resistant nylon, all our nets are machine sewed with double rows of stitching. UV-antifouling protection or coloration, on request. The finished nets are delivered in any shape or size with a mesh size of 4 to 30 mm, or only the net material itself.
Seine Nets in two designs:
Gill nets in two versions
Trap Nets in two outfits:
Cast Nets in two arts:
Scoop Nets in two forms:
We deliver also other nets in various sizes.
PRECISION CLOTHS for aquaculture and hydrobiology
This fabric program includes precision
sieves of different material strengths and offers a narrow mesh grading between 20-2000
micrometer and therefore fulfills all requirements of today's aquaculture and hydrological
needs. Appropriate sieve fabrics are offered per running meter and as standard or
customized products, such as filter-, dip-, hatching-, cage- and plankton-nets.
SHADING SHEETS AND NETS to protect fishes
Shades and nets are made from UV-stable polyethylene material with a shading density of 30-85 % to protect fish and ponds from light and birds. The sheets which let water (from rain) to drain off, are available on coils from 1,5 and 3,0 m width and can be manufactured with extra strong hem and eyes. For pricing always the width of the coil is calculated.
We deliver also bird protection nets with a mesh size of 15 - 150 mm.
TRAPS made of plastic material
This easy to handle and maintenance free plastic traps have been tested in practice and are suitable for both professional and sport fisherman. Features such as a new shape and correct coloring are the result of fishing expertise's. A favorable price/performance rate ensures highest economy in use. Of course the traps are saltwater and corrosion resistant and also resistant to crabs and other pests. This traps (with exchangeable components) have an inlet opening of approx. 42 cm and an integrated bait basket in the closed end cap. The traps are specially suitable for catching eels, but can also be used for other fish species as well as crayfish. This traps are delivered complete with plastic covered iron spits (12 mm Ø) for submerging, which guarantee that the trap is always positioned with the upper closed side on top, which in turn created a protection shelter for the animals.
We also deliver trap nets and all other fishery nets.
ALUMINIUM BOATS for fisheries and watersports
This multi-purpose boats are made of 1-3
mm thick seawater resistant aluminum, welded with modern technologies (WIG-Argon und
Plus-ARC) and need no coating or antifouling. The integrated floats secure this boats are
INFLATABLE BOATS for fishery and recreation
This well designed and large dimensioned
inflatable boats are build from a very strong (blue-grey) plastic material, according to
requirements of todays customer preferences and use. The good quality workmanship and
materials guarantee security and longlifety, also in seawater. The large diameter of the
hose, the reinforced heck plates and the keel forms, allow the boats even with minimal
motorization and low speed, good gliding, high floating capacity and enormous stability.
Security and safety is provided by the bars with broad profile on the sides and keel, by
the valves situated inside, as well as by the security and holding ropes on top. The
sturdy handles situated outside and the self lenting valve inside allow easy handling and
ELECTRO MOTORS for boats and pontoons
For boats, an electro motor is practicable for up to 9 m total
hull lengths. Electric motors have, compared with petrol motors, different turning
moments, which allow to use electric motors with relative low powers. Longtime experiments
have proven, that the required power relation (electro to petrol motor) can be 1:2.0 to
2.5, if the petrol motor was not over motorized for the boat and the use.
The requirement for seafood continually rises
worldwide, and product is continually becoming more scarce. Aquaculture is a young,
innovative part of economy with high growth rates and secure prospects. The future of fish
production requires water to be used as economical as possible, and environmentally safe
removal of waste products with lowest possible energy consumption. Demands of environment
legislation reduce possibilities of open water fish production more and more. Already
existing fish farms are confronted with directions for purification of their waste waters.
RECIRCULATION SYSTEMS for nursing and holding
The modules for nursery and holding are available for a yearly production-capacity of 1-2 t (125-250 kg standing crop) and consists of 2 square and 1 filter tanks with the needed technique and equipment. The water from the fish pools are cleaned through a particle filter to remove suspended solids prior to bio-filtration. The bacterial settlement for nitrification will develop on the packages of the reactor, mud will be removed through the current. Our bio-reactors have the gigantic settlement-area of over 900 m2 per cubic meter filter material and therefore we need only very small filter units. Through the introduction of fine air bubbles through a special aeration- and lift construction our systems work without pumps and therefore require less energy thereby reducing costs. Through compact construction, our systems can be installed any time and anywhere without rebuilding or extension expense. Aquaponic kits or hydroponic sets are available optionally.
RECIRCULATION SYSTEMS for the intensive production
The modules for production are available for a yearly production-capacity of min 25 t/year (standing crop 10 t) onward and allow our customers to get familiar with the technique and topic without high risks. The water from the fish pools are cleaned through a drum filter to remove suspended solids prior to bio-filtration, where the nitrification process and the aeration with oxygen takes place. From there the water is pumped to the fish tanks, witch could be adapted to customer wishes in form, size and number. The use of UV- or ozone is possible too. This system is available for all fish species (also salmonids).
HOLDING AQUARIA for fish and seafood
An aquarium should be seen as a complex grouping of elements functioning synergistically to maintain constancy of environmental characteristics, countering any variation whatsoever and simulating as far as possible the whole biological cycle that is present in nature and indispensable to the live of the aquatic animals. This professional range of aquariums are designed for holding of live crustacean or fishes at a working temperature of 10-30 °C and consists of double glass walls in which the two layers of glass are separated by a dry air gap. The aquaria are delivered as complete assembled units with ALU-frame and PVC-panels (70 cm high, color: black) with cover and lights (IP67), external mechanical/biological filter, circulation pump and chiller with thermostat, as well as cable and plough. Energy consumption 680-1200 W. The two larger systems are also available with two-compartment aquaria. Single wall glass aquaria (200-600 l volume) with stainless steel frame, on request.
Single wall glass aquaria (200-600 l volume) with stainless steel frame, on request.
HOLDING TANKS for fishes, crustaceans or mollusks
This isolated (PE) polyethylene tanks in blue color and cover are especially suitable for the holding of live fishes, crustacea or mollusca (like: crabs or oysters etc.) in fish or seafood restaurants, mongers, wholesalers etc. The compact units are delivered complete with integrated biological filter (calcareous seaweed) with pH-buffer effect below, and mechanical pre-filter, titanium-chiller (R134) with digital display and thermostat, recirculation system with pump, injectors, valves and PVC-pipes behind or on the side of the units. They are build for fresh and seawater, an electric connection of 230 V/50 Hz and a working temperature of 0-30 degree C. The electric consumption is about 0,5-1,0 kw/h, depending on model and temperatures. For mollusks, an UV-C lamp can optionally be integrated in the cover. The 3 larger tanks (dimensions ±2 %) with equipment on the side (+ 60-70 cm long) are instead the cover, optionally available with a 50 cm high double-walled glass-aquaria (approx. 200 to 400 l) incl. protein skimmer (+ 10-12 cm high).
Larger or stackable holding tanks, on request.
HOLDING SYSTEMS for crustacea and mollusca
This proven (GRP) glassfibre reinforced polyester tanks (isolated with polyurethane) are specially suitable for the holding of crustaceea and mollusks (like: lobsters and clams etc.). The units are delivered complete with integrated mechanical-biological filter (Lithothamnium calcareum) with pH-buffer effect, titanium-chiller (R134) with digital display and thermostat, recirculation system with pump, injectors, valves and PVC-pipes. An UV-C or an ozone system and a heater are possible optionally. They are build for a electric connection of 230 or 380 V/50 Hz and a working temperature of 5-25 degree C. The electric consumption is about 1-2 kw, depending on model and temperatures. The two smaller system are optionally available with a holding aquaria (approx. 300 resp. 500 l) on top and the smallest system also with viewing windows in the tank sides.
Larger or stackable holding systems, on request.
POLYESTER TANKS in all forms, sizes and colors
This tanks have a long proven history (30 years) and are manufactured of (GRP) glassfibre reinforced polyester layers (450 g/m2). The conical forms, the funnel shaped outlets and the absolutely smooth inside finish ensure the system is practically self cleaning. Therefore it is possible to hold sensitive bottom fish or fish larvae too. The whole pools and especially the edging very strong, allowing attachment of automatic feeders or other equipment. The tanks are delivered in different shapes, sizes and colors. Optional laminated feet make it possible to place the pools safe on any bottom and ensure easy lightweight handling or transportation. The outlets are made from PVC - pipe (110 mm Ø) with water level regulation, which is fixed under the bottom and leaded at the tank side. A bottom or stand sieve is available as accessories.
CIRCULAR POOLS with liner
This pools (2.0-8.0 m diameter and 0.9-1.5 m high) can be placed in or on the ground and consists of a 0.4-0.7 mm strong galvanized iron wall which is painted inside and plastic covered outside. The lower and upper bottom- and hand-rails are made of strong plastic to ensure a long self life. Inside the pools are lined with a 0.6-0.8 mm strong PVC liner with exact fitting in blue color (other colors like black or gray, on request).
We deliver also just the robust and soft PVC pond liner in a thickness of 0.5 to 1.5 mm in the colors black or green, on coils with a wide of 2-8 m and a length of 15-50 m, or as finished liners in any size.
PRESSURE FILTER with cleaning technique
This compact pressure filters with integrated UV-C lamp (220-240 V/50-60 Hz) with a service life of up to 9.000 hours, are complete filter systems with ecological threefold operation technic (mechanical/biological/optical), to solve all filter problems in garden ponds or aquarium tanks. An integrated user friendly backwash system allows an easy maintenance without opening of the filter. The water leaving the filter has the same pressure (max. 0,2 bar) as the entering water and therefore may can also used for waterfalls or injectors and therefore provides for a better oxygenation. The filters can stand free or set into the ground, below or above the water outlet and used for fresh- or saltwater. The filters are available in three sizes with a volume of 25-35 l and 20-40 mm hose connections as well as 10 m cable, for a recommended water flow of approx. 2,0-4,5 m3/h and a max. tank or pond size of 3-6 resp. 6-12 m3 (with resp. without fish stock).
SAND FILTERS for high comfort
This sand filters are made of glassfibre reinforced polyester (GRP)
and available in various sizes, heights and types (diameter 0.4-0.9 m,
height 0.6-1.5 m).
The filter units with high performance are available as single systems with or without
distribution cross and outlet valve, manometer (with automatic and/or manual air
removement) or also complete with pipes and ready for connection (230 Volt/50 Hz) with
6-way backwash valve, self-priming 6-32 m3/h filter pump (with large debits collector in
mounted on a noise reducing plate made of plastic.
FILTER CHAMBERS with swirl separator
This new compact filters are used specially for holding units and garden ponds and are very effective for the fine and raw filtration. The system can be operated by gravity or pumps and can be placed into the ground or stands free. A long inlet opening secures that the water in the vortex rotates slowly, so that the larger waste particles are trapped in the center of the bottom. The build-in flow channels force the water to flow trough the filter media (i.e.: Filter brushes, Japan matts, Sinter glass, Aqua rock, Bio balls, Poly foam etc.). The waste particles concentrate at each cone, where they can be removed regularly by opening of a gate valve. The models are made from galssfibre reinforced polyester (GRP) and are delivered with cover and outlet pipes. They are available with or without filter material.
On request also row-vortex filters with 3-5 filter chambers are available.
DRUMM FILTERS with high cleaning capacity
This drumfilters for the mechanical cleaning of
medium to heavy loaded aquaculture or industry waste waters are made from stainless steel
and are available complete with filter frames and screens, cleaning pump, electric control
and with or without installation tank.
Filter capacity in liter per second at 25-10 mg/l in suspension.
PROTEIN SKIMMERS for aquaculture and aquaria
This protein scimmers have a good dimensioned volume of the reaction- and foam tube. A special injection unit generates a vacuum, where air is sucked in and distributed in fine bubbles. In seawater the single bubbles have a volume of 0,065 mm3, a surface of 0,785 mm2 and a diameter of 0,5 mm. Each liter air generates therefore a total surface of 12 m2. A rotating (patented) nozzle system cleans the foam tube and the foam collector. Over a valve (optional automatic) water cleans the nozzle systems. A regulating system allows to operate the skimmer also under extreme differing situations of water column. Each skimmer, made from acryl and/or polypropylene (on request also from polyethylene), could be also used as ozone reactor. The optimal retention time is about 2 min., if the flow rate is increased the retention time decrease.
We deliver also ozone generators with a capacity of 1-1000 g/h.
BIOFILTER MEDIA with high settlement area
For Recirculating Aquaculture Systems (RAS) as well as aquaria and ponds or for the biological cleaning of waste waters after fish farms or culture ponds we supply the carrier or settling material for the biofilter which can be used in fixed or moving bead filters. The filter media are made from HD-PE (density 0,94-0,96 g/cm3) and is available of recycled raw material (black) or virgin raw material (white). They have a large settlement area for bacteria and allow a good biological cleaning from ammonia to nitrate (nitrification) as well as from nitrate to nitrogen (denitrification). The nitrification rate is approx. 0.5 g NH4-N/m2 in moving bead or flow filters (in fresh water at a water temperature of over 20 °C). In fixed bead or sprinkling filters, with a reduced cleaning capacity respective with more filter material of 20-30 % must be calculated. In seawater, as well as at water temperatures under 15 °C, with a reduced cleaning capacity respectively with more filter material of 40-60 % must be calculated. Other random media (like: chips/flakes/saddles) with up to 5,000 m2/m3, on request.
The numbers mentioned in the types are
the average dimensions of the products in mm (+/- 20 %).
HEATERS AND CHILLERS for aquaria and aquaculture
This compact (CE-certified) heating and/or cooling systems can be used for various liquid media (also seawater or foods) and are very save and secure in operation through the missing direct contact to the media. An electronic control via a high precision thermostat and the continuous display of the temperature via a digital thermometer allow an easy and exact control of the temperature. The min. flow is 500 l/h up to type 2000 and 3000 l/h from type 3000 onward (max. 1 bar). An ecologic cooling gas (R290 resp. R134a or R410a) and a low power consumption are features of this transportable and easy to install systems. The standard connection is 230 Volt 50 or 60 Hz. Systems with integrated UV-C System, higher capacity or other voltages are possible on request.
Capacity (0.5 W/l) in liter water volume at 5 °C temperature difference from ambient air to water (+/- 10 %).
WATER DESINFECTION with UV-light
light (UV) destroys microorganisms (like: virus, bacteria, fungus,
parasites, algae, etc.) by changing their genetic information (DNA), but does
not produce residual or hazardous by-products, nor does it affect the taste, odor or color
characteristics of the treated water. It is light with very high energy levels and
wavelength of 200-400 nanometer (nm). The most effective ultraviolet light for
disinfection is UV-C (200-280 nm), specially with a wavelength of 254 nm.
for drinking water with 98 % transparency
at 400 J/m2, if the flow is doubled the dose is halved (enough for fishes)!
SUBMERSIBLE STERILIZERS for pipes, cannels and tanks
ULTRASOUND DECVICE to destroy algae and protozoa
SUBMERSIBLE STERILIZERS for pipes, cannels and tanks
ULTRASOUND DECVICE to destroy algae and protozoa
Algae are problematic in many water areas and can create huge problems and high costs in industry, agriculture and other fields where water is used. Algae also make ponds and pools to ugly holes and can settle on boat hulls - where expensive antifouling coatings are necessary. This digital ultrasound devices (100-250 V/50-60 Hz AC or 12-24 V/1,5-2,0 A DC) send to the water (pond, pool or lake) special ultrasonic sound waves in periodic time scales trough the transducer in an angel of 180° on the front side. The wave length is depending on the type of the device and the mentioned distances are based on average values which can vary according to local circumstances, like water quality and water plants etc. In every algae the is a microscopic liquid bubble called vacuole. Our digital ultrasound device force that to swing which burst and finally kill the algae. But this is specific to different algae species. Single cell algae are killed after a treatment of 7-10 days, but filamentous algae need a longer treatment and die after 3-7 weeks. In which time the water will get clear depends also on the biological balance in the water. But also the quality and capacity of the eventually installed filter plays an important role. Additionally, with the ultrasound also the biological film (which builds up as sludge on the bottom or wall) in your water will be reduced and remove the base for many diseases pathogens like fungi or bacteria etc. The created ultrasound are not to hear for humans. If the device is in operation you may hear just a little ticking. But some other animals like dogs can hear it and may stay away from the device. Other is the whole with fishes, which some customers report prefer the ultrasound and stay nearby may because their skin is cleaned from parasites. Fishes feel not only better but also grow faster and are healthier with the ultrasound device.
INJECTION AERATORS for aeration, circulation, destratification and oxygenation
This injectors are one of the best and most advanced
aeration systems worldwide, and also suitable for large ponds. They work with an for
endurance run produced, maintenance free, turnable, submerged (also seawater resistant),
motor in different power sizes (0.75-1.50 kw (1.0-2.0 HP) 230 or 380 V/50 Hz). The rotating
propeller (2800 r.p.m.) produces an adjustable current, through which air drawn from the
surface and formed into fine evenly distributed bubbles.
INJECTORS without further energy consumption
This "ECO" injector is a new developed static aerator for the water inlet pipe (1 ") in tanks, raceways and small ponds, that works hydraulically and has no moving parts. It is designed to ensure cost-effective use of any viable water source. For degassing, aeration, oxygenation and dosing with chemicals (thereby avoiding the slightest wastage and maximizing efficiency). In enriching the water with air or pure oxygen, this aerator can create good circulation with a lesser amount of water than is usually supplied, with consequent energy savings. It works hydraulically (from 0.2 bar and 0.4 l/sec. on) exploiting the act the water passing through it at high speed (achieved by means of suitable flow rates and pressures with the special 3 interchangeable nozzles (for approx. 30, 50 or 100 liter/minute) and creates a great pressure drop and consequently a tremendous suction capacity, without introducing additional energy. If no pressure is available it can be connected to any pump.
PROPELLER AERATOR with horizontal spray pattern
This propeller aerator was specially developed for intensive production of fish in tanks, raceways and ponds. The maintenance free, heavy duty, motor (230 or 380 Volt) has a mounted propeller which allows a high water circulation and has an oxygen transfer rate of up to 1.25 kg/kwh or with 6 mg/l at beginning approx. 0.4 kg/kwh. The small float size (70 x 70 cm) as well as the compact and lightweight system make it fast and easy to install.
As accessories a protection basket (with 4, 7 or 12 mm grating) is available, which save smaller fish for injuries. Additionally a water conveyer for the suction of deeper water can be build to specific depths.
AERATOR PUMP with fountain spray pattern
This "Spray" aerator pump with 10-25 m cable is specially suitable for ponds and introduce a lot of oxygen into the water. If the self floating pump is connected with the spray nozzle it becomes an aerator with fountain spray pattern. If the supplied nozzle is changed to the supplied pipe adaptor it can be used as a floating pump for irrigation. The change of these two functions doesn't need any tool. They have a very reasonable price and are easy to install, either floating on the water surface or submerged to any depth (with an anchor stone).
PADDLEWHEEL AERATORS for intensive production
This paddlewheel aerators widely used all over the world, special in intensive ponds and raceways. They are available with 2-6 paddle wheels, in different power ratings from 0,75 to 2,20 kw (for 220 or 380 Volt) and have a weight of 80-120 kg. The oxygen introduction is up to 1.5 kg/kwh or with 6 mg/l at beginning approx. 0.5 kg/kwh. Wheel and frame are made of steel, the paddles from special plastic material and the H-formed floats from thick UV- and ozone resistant plastic.
PADDLEWHEEL SYSTEMS for effective oxygen introduction
Aeration and/or oxygenation is specially of economic importance in intensive farms. At this completely new developed systems all possible failures and defects of other known products have been removed. The systems have been tested under hardest conditions and have a very high efficiency, with the same time low investment and operation costs. The oxygen introduction is usually about 1.6 kg/kwh. There are no bearings of the wheel (100-130 r.p.m) necessary and also no couplings and discs, this reduce friction lost and increase the efficiency and also reduce the possible parts which could become defect with time. A very long self live and high efficiency is also guaranteed through the worm-gearing. The motor is specially sealed against moisture. Paddles, wheel and frame are made of stainless steel, the floats from thick UV- and ozone resistant material. The Paddlewheel Aerators are available in different power ratings (180, 250, 370, 550 and 750 Watt) and have dimensions of approx. 1.5 x 1.6 x 0.6 m (LxWxH) and a weight of 30-70 kg.
To use this paddlewheel aerators also with pure oxygen instead of air, as accessories a special oxygen cover is available. The special formed cover inside guarantees that no oxygen (feed up to 15 l/min) disperse or waste to the surface, after the water leaves the aerator. As there are no seals necessary at the bearing of the wheel, also this guarantees that there is no oxygen wasted and thus this makes the system very effective too. The efficiency is up to 90 % and the oxygen introduction up to 2-3 kg O2/h.
RUBBER DIFFUSER with stainless steel frame
This professional, extremely durable and effective diffusers are suitable for the live fish transport and for emergency purposes with pure oxygen. The approx. 1000 pores/meter arranged in 6 rows, of the special oxygen hose open only if oxygen is supplied and close again if the supply stops. Thus, pore blockage is prevented and the diffuser is always ready to operate. An uniform bubble size due to the straight hose mounting in a stainless steel frame are main features of this professional diffusers. The sturdy hose connection is 6 mm as standard (and is also available in 9 mm if preferred).
Other diffuser sizes and forms on request. For the self production of diffusers we deliver also just the diffuser hose per meter (18-19 mm inside and 24-27 mm outside diameter) as well as end pieces with connector and the pressure hose per meter (6 mm diameter).
CERAMIC PLATE DIFFUSERS for micro gas bubbles
This diffusers are robust engineered
products with high specification and performance and perhaps are the most efficient
diffusers available. The ceramic plate has been designed to be very strong, the thickness
(approx. 12 mm) of the ceramic has been increased over the more conventional plates. The
pore size is also only 0.3 microns which produces a cloud of tiny oxygen bubbles (10-200
microns) in the water. Depending on the gas (oxygen or ozone) and water chemistry, the
diffused gas may pass directly into solution with no visible sign of bubbles. There is no
better gas diffuser available.
PROFESSIONAL CERAMIC DIFFUSERS for air
The fine pored ceramic tubes allow to diffuse the air in fine bubbles. The diffusers should be installed in the same depth, but as deep as possible below the water surface. The floating cross diffuser is placed on the water surface in the center of the tank or pond and fixed with a rope to the shore so that it can move a little and aerate a larger area.
The cross diffusers are available complete with 20 mm hose tail (other on request) and are delivered with or without float. The 1 m long feeding tube is also available shorter. Each diffuser tube has a length of 18 cm and a diameter of 6 cm and can introduce approx. 1.5 to 2.0 m3 air/hour each (6-8 m3 per cross diffuser). They are also available as self sinking single tube diffusers with hose tail.
FLEXIBLE GAS DIFFUSERS with high performance
This is among the most robust and versatile fine bubble diffusers commercially available. The diffuser has the capacity to pass large quantities of air, oxygen or carbon dioxide with low pressure drop and small bubble size (approx. 1-4 mm). Fine bubble diffusion is inherently more effective than coarse bubble diffusers in providing a greater mixing action and aeration efficiency.
The diffusers are of a tubular semi-flexible construction (32 mm in diameter). An outer polyester sleeve encases a silica particle ballast and an inner nylon distributor. The internal ballast is not fused together, therefore precipitates such as iron and carbonates tend to crack off, and can be flushed out easily. The internal ballast (weight approx. 1.5 kg/m) means that the diffuser does not need to be anchored to the floor of the tank. The unique design of the diffusers makes them largely resistant to biological and chemical fouling. The diffuser resolves many of the problems associated with other diffusers and has proven itself with over 10 years of use in many industrial and waste water treatment applications and it is the leading air diffuser for aquaculture. This gas diffuser is a hybrid air diffuser with the benefits of both tubular membrane and solid air diffusers, but with few of the disadvantages. Solid diffusers can break or become blocked by biofouling, iron and carbonate precipitation. Membrane and other tubular diffusers have to be secured to the tank bottom. The membranes (elastomers) can also suffer from fatigue, and as a consequence the performance can rapidly tail off over a few months. The diffusers are sized (up to 3 m in length, and with extension parts also longer) according to the flow (m3/h) of air to be used. Length is approx. 33 cm per m3/h air or liter oxygen/min flow rate and pressure drop is approx. 200 mbar (<3 psi). All diffusers are supplied with 1/4-1/2" hose tails.
MEMBRANE COMPRESSORS for Direct Current
This simple membrane diaphragm compressors supply oil-free air and are perfectly suitable for live fish transports, where the required energy (12 V/DC standard, 24 V/DC on request) can be supplied by a battery i.e. from the truck. As accessories 6 mm hoses and various diffusers are available.
SIDE-CHANNEL BLOWERS for water aeration or delivery
The design of these blowers is based on long experience in blower production. The motor (standard 380 Volt/50 Hz, 2850 RPM) is made for endurance and is offered in different power sizes. The flow capacity based on air at 981 mbar and 20 °C (at the inlet connection) ranges from 110-300 m3/h. Because of the small dimensions and compact construction, as well as the low noise level (45-48 dB), these blowers can be placed almost anywhere. The blowers can be installed singly, in parallel, or in rows for an increase in pressure. On request the blowers can be produced for us in seawater, or for other voltages and frequencies. Air filters, pressure valves and support stands are available as accessories.
The typical emerged blowers (type V) are installed only on the land, but at
almost any location. An advantage in recirculation systems is that the heat
in the air of a room can be used to heat the water.
REGENERATIVE BLOWERS for pressure or vacuum generation
This reliable and favorable blowers summaries modern know-how of pressure and vacuum generation, based on longtime experiences. The motor is constructed for endurance run is available in various power sizes. Concerning the compact dimensions and the low sound this blowers are easy and everywhere to install. Lateral channel blowers work regenerative. Casing and impeller with radial blades form a circular body. The medium (air) is accelerated by centrifugal force in the blade channels, stocked and compressed. This process continues permanently with continually increasing pressure rising until the medium leaves the casing through the outlet connection. Because of the special principle of construction and design, there is no contact between rotating parts. The machines are delivered as mono stage (M) or double stage (D) blowers with single (S) or twin (T) impeller. As accessories air filters, sound absorbers and security valves are available.
Performance data at pressure operation 50 Hz (= 2900 RPM), for air at 20 degree C, pressure 1013 mbar, tolerance +/- 10 %
OXYGEN GENERATOR SYSTEMS for intensive aquaculture
In recent years, fish farming has turned into high density farming practice and pure oxygen is essential in modern aquaculture. Several studies have shown adding dissolved oxygen into water on fish farms has a very positive effect on growth rates, feed conversion and mortality rates, all factors that will affect the profitability significantly. On-site oxygen generators allow an uninterrupted supply of gas with a high purity output (adjustable 85-95 %, outlet pressure 4 bar). This means that you can produce gas where and when you need it, and in the exact quantity and quality you need, to reach gas self-sufficiency and independence from external gas suppliers. This oxygen generators are known as reliable, easy to use and low operational cost. They save energy and money as supply of oxygen cylinders or rent of liquid oxygen tanks becomes irrelevant. The average oxygen production cost are about 1,1 kwh per cubic meter of oxygen. An oxygen generator combined with cylinder gives the highest level of backup in comparison with cylinders it gives overall cost reduction up to 80 %. We use only high quality components and all systems are designed for 24 hours, 365 days a years operation. They are easy to operate and require minimum amount of maintenance and service.
This proved generators are based on the well-known PSA (Pressure Swing Adsorption) technology, using two pressurized columns with molecular sieves to ensure continuous production. Dry compressed air is blown through a valve to the vessel where the pressure is built to reach 5 to 7 bar(g). Oxygen is tied to a molecular sieve during the building of pressure and the nitrogen is allowed to pass through to the accumulation tank. While pressure is built in vessel, the second remains without pressure. A part of the produced gas is used for regeneration of the molecular sieve, which, in the case of Nitrogen, is a Carbon Molecular Sieve (CMS). The entire PSA system can be subdivided into several components like: air compressor, air dryer, air tank, oxygen generator, oxygen tank and accessories. The models are available with a capacity in the range from under 1 to over 400 m3/hour (at an oxygen purity of 90 %). Oxygen cylinder filling stations are available on request.
Flows in m3/h for
operation with 15°C, 981 mbar, inlet pressure 7 bar, flow variance ±5%, oxygen purity 90
%, purity variance ±1%.
WATERPROOF TESTERS for aquaria and aquaculture
These waterproof (IP67) and pocket sized testers (153 mm long, 24 mm diameter, weight just 45 g) with digital display are ideal for aquaria or aquaculture and any other field applications. There are different models with replaceable electrode and automatic temperature compensation available that read conductivity or salinity (0-1999 µS EC or 0,0-199,9 ppm TDS), pH-value and temperature (0.00-14.00 pH and 0.0-50.0 ºC) or redox potential (±1000 mV ORP) at an affordable price. The tester are factory calibrated, but can be manually calibrated and measurements are highly accurate (0.1 or 2 % or mV) with high resolution (1,00 to 0,01). The modular design allows easy electrode and battery replacement. A rugged splash-proof and floating casing prevents water infiltration. All the testers work with common batteries (3 x 1.5 V) and have a long live.
TEST BOX for the water analysis
This Compact-Laboratory box set is equipped with liquid color analysis tests of: Oxygen (Demand + Dissolved), Hardness (Total + Carbonate + Residual), pH-value, Ammonia, Nitrite, Nitrate, Phosphate, and Temperature.
All tests are also available as single or replacement units and additionally test sets for: Aluminum, Arsenic, Lead, Chlorine, Chloride, Cyanide, Iron, Calcium, Copper, Magnesium, Manganese, Nickel, Sulfate, Sulfite, Zink, Zinn etc.
DIGITAL PHOTOMETER for various water parameters
For the necessary manual analysis, this microprocessor photolyser meter with professional concept and high precision is the right choice. Just select the required program on the foil pushbuttons. The display shows the parameter and dimensions exactly (to 2 digits behind the got). An acoustic sign informs when the reaction time is finished. The results are displayed on the meter and can be stored for later processing. The meter is equipped with a RS-485 adaptor. Via an additionally integrated RS-232 adaptor the meter can be connected to a printer or PC (cable as accessories available). It is possible to archive over 500 stored data sets with date and time for up to 16 tanks. The meter has a 0-point-memory, which needs no new calibration. This photolyser works with 4 usual 1,5 V batteries, with integrated capacity monitoring on the meter. Alternatively accumulators or a connector for an external power supply is available (as accessories).
SATUROMETER to identify gas super-saturation
This new handheld saturometer
(Protection class IP65, with electric backlight display identifies gas super-saturation in
water reliably to 250 hPa resp. mbar pressure difference (displayed also as % total gas
saturation), with an accuracy of 1 hPa. It works with a usual 6 x 1.5 Lithium cells, with
integrated capacity monitoring on the meter. The maintenance free sensor is
sealed (Protection class IP67, Signal outlet 0-5 V). As option also oxygen
(O2) and/or carbondioxyd (CO2) sensors can
be connected to the meter, and with the optional software it than even
calculates nitrogen (N2).
We deliver also moisture meters.
WATERPROOF METERS for easy measurement
At the development of this new series of handheld meters we concentrated on the most important functions of the measurement technique. The pure measurement with the focus on precision, fastness and durability packed in a stable ABS-housing 108 x 54 x 28 mm (LxWxD), weight approx. 130-200 g (without sensor) with 4 simple touch-buttons, allows for an extraordinary relationship of price to value. This functional meters have a modern and economic design, are dust- and weatherproof (according to IP65/67) and have an illuminated 3-line display (accuracy: 0,5-1,5 % resp. +/- 1 digit at a norm temperature of 25 °C) with battery status. This meters have additional features, such as: automatic min-/max-value memory, hold-function, and an overhead display on push-button. The reasonable priced meters are delivered completely ready to use incl. battery (type AA), cable and sensor (12 mm Ø). Transport cases are available as accessories.
ELECTRONIC METERS for many water parameters
All this electronic devices have a size of 142 x 71 x 26 mm (LxWxD) and a weight of approx. 155/255/300 g (incl. battery/sensor), and have a LCD double display (precision: ±1 digit) for measured values and temperature, min-/max-value memory, configurable automatic switch-off function (1-120 min), hold-function, foil pushbuttons, automatic temperature compensation, 12 mm Ø sensors, serial connection, 9 V battery with warning and external energy connector as well as integrated stand- and hanging clip. Multiparameter-Meters (for PH-value/Redox, Conductivity/Salinity, Oxygen/Temperature in one device), on request.
DATA COLLECTING SYSTEM for GHM meters
DATA COLLECTING SYSTEM for GHM meters
MICROPROCESSOR METERS for professional monitoring
This improved meters were specially adapted for use in aquaculture and
limnology. The compact (L x W x H 165 x 83 x 34 mm, approx. 305 g)
splash-proof cover (IP 54), the plastic sensor (14 mm Ø, 150 mm long, with
1.5 m cable), the very long sensor life (approx. 2 years standby time), and
the delivery with NiMH-batteries (2 x AA Mignon) and USB-cable with charger
in transport case, make these meters perfect for field work or laboratory
use. The large graphic multi-display makes the readings available clearly
and quickly. The short polarization time (approx. 30 sec. max. 5 min.), the
low flow current sensitivity (1 % at 5 cm/sec.), the high precision +/-1
digit (0.1 mg, 0.5 % or °C), as well as salinity correction, automatic
air-pressure and temperature compensation (in the range of 5-40 °C) makes
working easy. Automatic calibration with the calibration chamber (included)
is an additional feature. Options include stainless steel sensors
(4.7-5.4 mm), and other cable lengths available. To enable you assigning measured values
geographically, these meters are available with or without GPS.
OPTICAL DISSOLVED OXYGEN SENSOR to connect on systems or computers
OPTICAL DISSOLVED OXYGEN SENSOR to connect on systems or computers
MODULAR MULTIPARAMETER measurement and control system
When it comes to automatically controlling and adjusting critical water parameters, it leaves nothing to be desired. Due to its flexible modular concept, the system is the perfect solution for most applications in aquatic environments. Apart from comprehensive timing functions, it provides measuring modules for the parameters of pH value, redox potential, temperature, conductivity, level (fill level), oxygen and air pressure. Up to 8 sensors can be linked to the system in any requested combination. This allows, for instance, simultaneous pH value-measurement and adjustment in eight different pools – which is so far unique. Connection facilities for up to eight measuring modules in any requested combination allows for connecting up to 16 switching outputs (4x4) for control and adjustment functions measured data storage for 2000 measuring chains battery backed computer interface for PC-data evaluation with the software, capable of being network-integrated by LAN adapter, flash memory technology for update-function, automatic sensor identification and sensor testing, day/night simulation, lunar phase simulation, high/low tide simulation, flow simulation, timer clock functions, time interval functions, night modus, acoustic, optical and external alarm, etc.
The system provides greatest accuracy, ease of use, and maximum reliability. The systems are available as measuring/regulation systems with a switch socket and mains adapter for permanent operation. Besides its accomplished design, its practical special functions are thoroughly convincing, too. It is this facility that gives you the overall picture of your past readings thus quickly revealing any trends. The systems can be extended, even at a later date, to form a measuring and regulation system designed for permanent operation, simply by connecting the optionally available power station. An integrated alarm function assures greater safety. You can select an upper as well as a lower alarm setting. If, for whatever reason, one of these alarm settings is reached, the Power Station switch socket will be turned off. At the same time the alarm status will be appear on the display. The result is a reliable and effective prevention of damage. Microprocessor-controlled, Alarm function, Large display panel, Manual / automatic storage of measurements (up to 470 readings), Automatic transition to energy-saving mode when being run on batteries, Battery check, Semi-automatic calibration with sensor test (for pH, redox, conductivity, oxygen), High-quality, low-maintenance sensors.
The software is the central and convenient solution for controlling, adjusting and analyzing all industrial measurement and control systems. At just one glance, the user can check out if everything is okay – and interfere if necessary. Internet connection allows for controlling and adjusting the system even from remote PCs. It allows for analyzing and controlling the data measured by up to 255 industrial systems in one central PC. Allows for configuring all system parameters from PC, allows for status e-mails and SMS alarms, data base and graphical presentation of measured data and measured value evaluation.
HATCHING JARS made from plastic
Used successfully for over 20 years by federal, state and professional hatcheries and fish producers here and abroad, this jar can be used for a wide variety of species like: Salmonids, Thymallids, Coregonids, Acipenserids, Percids, etc. Made of high impact, non-corrosive easy to clean plastic, this uniquely designed hatching system enables uniformly distributed water to rotate fish eggs ever so gently and evenly. It works very simply as water from the supplying hose is directed down to the open-ended feeder tube in the center of the jar. The tube (diameter 3 cm = 1.25 in.) easily accommodates the preferred water flow so that the eggs at the base are rotated uniformly and precisely. The jar has a height of 45.8 cm (18 in.) a diameter of 16 cm (6.25 in.) and a volume of 6.86 l (232 oz.). It weighs only 2.5 pounds and can be ordered complete or also without feeder tube and screen. A circular filter/mesh screen (as accessories) prevents waste eggs from spilling out of the jar, while the large spout (length 7.5 cm = 3 in., width 5.3 cm = 2 in.) at the top lets hatched fish swim out at just the right time. Now you can virtually duplicate nature's way of hatching eggs with this durable, see-through incubator jar. So next time you want your eggs "over easy", make sure you are using this hatching jar.
INCUBATION JAR SYSTEMS with overflow
This simple and cheap jar system is suitable for hatching of eggs of various fish species, like carp, pike, perch, catfish, burbot, sturgeon etc. It is made of stainless steel frame and saves space and water. Each "Weiss or Zougg" jar made of glass with a volume of about 9 liters and bottom sieve, has a its own inlet pipe with valve and a overflow with pipe, so that it can be supplied individually with water. After hatching the larvae usually leave the jars by themself with the water flow or are removed by the farmer from the jar. The system can be build with any number of jars (up to 10 pieces in single and up to 20 pieces in double row).
BREEDING JAR SYSTEM with top tank
This well designed systems are made of stainless steel and are equipped with "zougg or weiss" glass jars witch can be removed and serviced separately. Through the inlet tank on top, all jars can be individually supplied with water. The tank and feet are somewhat adjustable in height. The eggs of various fish species (Cyprinids, Esocids, Thymallids, Coregonids etc.) are incubated in the jars and rotated gently by the water flow. A breeding cone for salmonid eggs and an overflow sieve (1-2 mm holes) to avoid eggs or larvae being spilled out by water, is available as accessories. The standard systems have dimensions (LxWxH) of 115-215x40x165-185 cm and are equipped with 3-7 glass jars each with a volume of 8 liters. Other sizes or 3 liter jars are possible on request. Single jars with or without stand support are available too. The system can be equipped with a heating/cooling system and in connection with an UV-sterilizer operated in recirculation.
VERTICAL INCUBATORS to save space
This vertical incubators guarantee safe conditions for the professional breeding and hatching of salmonid eggs (like: salmon, trout, char etc.) and can be combined and arranged in different ways, to utilize the available space as effectively as possible. The water (min. 5 l/min) from the inlet, flow trough the trays on which the eggs stay, and leaves the water tray over the front during the side canals to the next tray, were it flows again through the egg tray and so on, so that all trays will be supplied with sufficient water. Without disturbing the other trays, each tray (approx. 62x52x8 cm) can be drawn out and controlled easily and provides in the inserts (approx. 45x37x5 cm) perfect conditions from the fertilized egg to the swim-up stage. They are available with 5, 8, 10 and stacked with 16 or 20 trays for up to 1 liter or 10,000 eggs per tray) made from strong non toxic plastic material and includes the aluminum or stainless steel frames (approx. 64 cm deep, 58-60 cm wide and approx. 50, 84, 100 and 175 or 210 cm high, changes reserved) and all egg trays with polyester screens (approx. 1-2 mm).
VERTICAL INCUBATORS to save water
This vertical incubator allows optimal conditions for the incubation and hatching of salmonid eggs (like: trout, charr, grayling etc.) and save water. The water (only 1.8 l/min) from the top tank with float switch and filter tube flows by gravity trough the trays, from the central inlet funnel through the sieve baskets where the eggs stay, and leaves the tray via the outlet holes all around the sides, where if lows down the cone shaped tray to the next one a.s.o., so that all trays will be supplied with sufficient oxygen. Without disturbing the other trays, each tray can be drawn out and controlled easily and provides optimal conditions from the fertilized egg to the swim-up stage. The corpus made of black plastic has a removable and roll-up front cover also made of plastic material, which reduces light within the incubator. The incubator is available with 10 trays and baskets (for 100.000 eggs respectively up to 1 liter eggs per tray) made from aluminum (approx. 40 cm diameter and 5 cm high). The whole incubator has dimensions (W x D x H) of 48 x 62 x 128 cm. A support frame (45 cm high) made of stainless steel is available as accessories. The system can optionally be equipped with a heating and/or cooling system or operated in recirculation.
BREEDING THROUGHS for salmonid eggs
The horizontal through allow an easy survey of the breeding process and are available for up to 4 or 7 baskets approx. 40 x 40 cm (for up to 1-2 liter eggs each) made from smooth reinforced glassfiber polyester (approx. 215 or 360 cm long). The screen (1-2 mm holes) of the egg incubation baskets are fitting exactly. The water (min. 0.1 l/sec) from the front, flows through the baskets on which the eggs stays, and leaves the through at the back side, so that all baskets will be supplied with sufficient water. Without disturbing the other baskets, each basket can be controlled easily from the top.
Optional an outlet screen is available. This troughs can also be used for start-feeding of the fry after the yolk sac has been absorbed.
BREEDING BOX for running waters
An experience of many years in egg incubation and fry rearing, as well as stocking experiments in various waters, where the base of this new and innovative invention for the hatching of salmonid eggs (like salmon and trout, as well other species on request) in natural streams. The flood save and closeable box is made of stainless steel with dimensions of (LxWxH) 90 x 20 x 13 cm, weight approx. 13 kg). It is used for the professional and controlled incubation and hatching of salmonid eggs as well as for the breeding and rearing of fry for (re)-stocking purposes. The box is simply set into the water (front flap against the current and cover a little above the water line) and anchored by the eyes to the bottom ground. Depending on fish species and egg size, the box supports a save environment for up to 10.000 eggs and fry until exogenous feeding. The eggs lay in baskets, which can be fitted with special hatching substrate to reduce maintenance. Under normal conditions, the maintenance is limited to the periodical control (1 x per week) of the system, where results of 90-95 % are reached in average. When the fry reach the stage of exogenous feeding they can distribute themselves in the brook or river.
HATCHING SUBSTRATE for stronger fry
Mainly for salmons, but also for many other salmonids, this 2-layer hatching substrate (40x40 cm) have been used and proven well. The eggs are incubated on the hatching substrate as usually practiced. After hatching the larvae move trough the spaces and shelter in the substrate nipples of the soft rubber like plastic substrate. The hatching substrate imitates the gravel substrate naturally occurring in the brooks or rivers and provides optimal developmental conditions for the fish larvae. The fry are therefore stronger, have less deformations and a lower mortality rate.
AUTOMATIC FISH EGG SORTER with fiber optics and infrared light
This egg sorting machine uses the most current technology to sort 100,000 eggs per hour. It is available with both live and dead egg counter or also without counters. Using the patented standard disk, the egg sorter will sort salmonid eggs from 5,000-18,000 per kg (150 to 500 per ounce), or if equipped with the salmon disk, it will sort any size salmon egg. Best of all, you never have to change disks to handle different sizes of eggs. The patented technology uses fiber optics and modulated infrared light to scan the egg and assure the highest level of accuracy (approx. 98-99 %). It has been used all around the world and will accommodate any local voltage. In the interest of safety and reliability, the local voltage is reduced to 12 volts DC. It has dimensions (LxWxH) of approx. 78 x 35 x 27 cm (32 x 14 x 11"), a weight of 23.4 kg (52 lbs.), and an egg tank capacity of 19 liters (5 gallons) and is made of clear and white acrylic plastic. A water and compressed air supply is needed for operation.
Eyed eggs are placed in the trough with water flowing through the bottom. Several kilogram of eggs may be loaded at one time. The water flushes the "eyed" eggs against the patented disk where they are captured in the tapered holes in the outside of the disk. Once the egg sorter is fitted with the disk matching the type of egg you are sorting (trout or salmon) it will sort any size egg inserted. The eggs in the disk then pass an electronic scanning device which, using modulated infrared light, detects dead eggs. All with 100 % ambient light immunity. Dead eggs are then ejected out one side of the sorter while the live eggs travel to the opposite side where a gentle flow of air ejects them into a curtain of water which carries them to a separate container - safe, sound and ready for further incubation. The counters then increment, providing accurate totals of both live and dead eggs sorted. Each time a dead egg is detected, a light comes on giving you visual assurance that everything is working correctly.
PROFESSIONAL FEEDERS with solar panel
This "Solaris" Feeding System was designed and constructed to the latest specifications in the field of aquaculture economics by using the most modern components of present day technology.
The model "INTERVAL" is equipped with a solar panel, a feeding computer and accumulator (to balance weather depending days) which is mounted in a splash proof box (directly on the feeder) and can be adjusted exactly to feeding intervals, quantity and time. The daily feeding amount (1-5 mm Pellet) is adjustable from 0,1 kg up to 100,0 kg/day.
The model "SUPERSPREADER" is equipped with an adjustable sector and/or round spreader (radius adjustable approx. 2-8 m and up to 20 m on request), and delivered with a larger solar panel and stronger accumulator.
The model "UNIVERSAL" has a larger outlet and can additionally be used for granulated seeds or meal feeds and pellets up to 12 mm.
The white or green feed hoppers are available in five sizes (for 15, 25, 45, 75 or 95 liter). As accessories a tube or ring holder hopper support is available.
All models are also available without solar
panel and accumulator, for the connection to a central power supply with transformer and
distributor box (for up to 1 and 8 or 24 feeders).
AUTOMATIC FEEDERS with spindle PNEUMATIC FEEDERS with blower
AUTOMATIC FEEDERS with spindle
PNEUMATIC FEEDERS with blower
This easy to use and very robust pneumatic feeder, is specially recommended for feeding on ponds or raceways, where large feeding areas (approx. 10 m2) and a wide feed distribution (up to 12 m) are necessary. The compact and lightweight container made from stainless steel is suitable for the rough conditions in the field outside. It has a capacity up to 120-240 kg of dry food, has 2 extendable pipe outlets (2 ") with distributor plates and contains also the blower (230 V/50 Hz, max. 375 W) etc. A timer is available as accessory and allows to set up to 4 feeding times per hour, and the feeding time can be adjusted independent. The feed quantity and be additionally changed at the 2 pipe outlets by a screw. The feeders are available in different sizes, with a diameter of 70-85 cm, a height of 100-125 cm and an empty weight of 30-40 kg.
BELT FEEDERS with strong clockwork
Since more than 30 years this feeders are in use for save and exact feeding of fish fry and fingerlings. The clockwork runs over (12 or 24 hours) and is started if the belt is returned (in the morning) where the feed (up to 3-5 kg) is placed. The new clockwork with strong and corrosion free steel spring and splash-proof acryl cover as well the plastic box lasts best the weather conditions and guarantees a long live of the feeder.
The feeders are available in 2 sizes and have dimensions (L x W x H) of 560 x 200-300 x 150 mm (weight approx. 2-3 kg) and can easily used at any place without electric energy, like nursing ponds. Electric beltfeders (12 V/DC) with or without solar panel, on request.
AUTOMATIC FEEDING DEVICE for frozen zooplankton
20 years world wide experience in the field of plankton research, catch and larval feeding are the basis of the new "Plankton feeder", which was developed with the Institute of Fish research.
This device is designed for the professional application of frozen zoo plankton as a larval diet in marine and fresh water hatcheries for the production of high quality fingerlings like: Coregonids, Chars, Grayling, Salmon, Sturgeon, Sea bass, Sea bream, Turbot, Grouper and other species. The technique is based on a timed "wash down" of feed layers from large frozen plankton crumbs (up to 20 kg) and homogeneous distribution of the thawed plankton rations to the larval tanks by a specially developed self cleaning distributor. "Wash down" of the food layers and thawing can be performed either through spraying or by flooding or by a combination of both facilities, the remaining plankton is frozen immediately. The feed particle size can be perfectly adjusted by a special sieving unit. In order to avoid membrane damage and leaching effects of the thawed plankton organisms, the feed is distributed to the (up to 32) larval tanks by gravity flow only. Automatic feeders for live zooplankton (Artemia), on request.
Feeding cannons or feeding robotic, on request!.
ISOLATED TRANSPORT TANKS for live fish
This professional tanks for the long distance transport of live fish are made of strong double wall reinforced glassfibre polyester in white color, isolated with 2 cm thick foam panels and metal fittings made of stainless steel. On the top, the tanks have an anti-slip surface, which makes it possible to walk and service them safely. For the save transport they also have a well closing splash-proof cover, air and oxygen connections as well as a handle. The tanks have a 2" outlet and a water-proof hatch for water drainage or exchange, situated on the front wall. A large outlet gate with inner closing door allows easy emptying the tank of fish and water. As option these tanks can be supplied with dividing inner middle wall and a second outlet gate. As accessories mounting corners, an outlet chute or an outlet funnel with pipe adapter are available.
The numbers in brackets are overall dimension with gate and cover.
FISH TRANSPORT TANKS to customer design
This individual tanks for the save transport of live fish are made of reinforced glassfibre polyester with a smooth surface in the colors white or green. To use the space of the transport vehicle more economically all tanks can be manufactured to customer design with your individual layout dimensions. All tanks are supplied with well closing, removable cover and lid as well as hand grips. As option these tanks can be supplied with slanting inner bottom and splash protecting top and with drainage valve with sieve and outlet gate with door. As accessories installed (12 Volt, DC) circulation pump systems or compressors with diffusers, pressure reducers with flowmeters, oxygen cylinders or liquid oxygen units are available.
FISH TRANSPOR TANKS from Polyethylene
This reasonable tanks for the short transport of
live fish are made from smooth polyethylene in green color. The tanks are
fitted with handles and available in different sizes (LxWxH 80-130 x 60-90 x
35-65 cm) with volumes of 130-500 l (larger on request). All tanks are delivered with removable
cover in aluminum and outlet. As accessories, separate (12 Volt, DC) membrane
compressors and various diffusers and hoses are available. LIVE TRANSPORT CONTAINER for the forklift In order to
move and release live fish easy inside the farm we offer this Austrian development. The
container is made of 5 mm strong aluminum (LxWxH 180x110x65 cm, weight approx. 170 kg)
with cover and has special supports for a forklift. A water tight outlets sluice and the
draining bottom allow to empty the container easily and save until the last fish. An out-
and overflow valve with water level regulation allows an easy water replacement, even with
fish inside the container.
LIVE TRANSPORT CONTAINER for the forklift
In order to move and release live fish easy inside the farm we offer this Austrian development. The container is made of 5 mm strong aluminum (LxWxH 180x110x65 cm, weight approx. 170 kg) with cover and has special supports for a forklift. A water tight outlets sluice and the draining bottom allow to empty the container easily and save until the last fish. An out- and overflow valve with water level regulation allows an easy water replacement, even with fish inside the container.
LIFTING NET with automatic lock
This lifting nets can be used perfectly to harvest larger fish quantities gently from raising- or holding-units.
The fishes are harvested directly with the lifting net from cages, tanks or other systems where the fish are already kept in high density by using a crane (see picture). For opening the base of the net, simply the rope of the automatic lock is pulled, and the fishes are released gently.
The lifting net has a diameter of 1 m and is available with different outfits (just with 50 mm outer net, and with or without tarpaulin inside, and with or without 10 mm inner net. It will be delivered completely with single or double frame made from aluminum or galvanized steel, ropes and automatic lock.
LIFTING DEVICE for live fish
This lifting devices which work with an "Archimedes Screw" of 38 cm in diameter and are suitable for up to 6 t/h of any fish species and sizes between 3 and 3000 g. They are mobile and used mostly for indoor or outdoor transportation of live fish, from and between ponds, raceways or net cages etc. to graders, transport tanks or slaughtering. The frame guarantees easy regulation and indication of the screw angle and allows to place it in various positions. The device outlet is designed in a way that it can be connected to a pipe system.
The lifting devices are complete equipped with: screw made of durable fiberglass reinforced polyester, frame construction made of stainless steel, wheels made of hot-galvanized steel, firmer and electric motor (380 V 0.7 kw) and available in lengths of 4, 5, 6 or 7 m for a lifting height of 2-4 m. Lifting devices with larger screw diameter, on request.
IMPELLER PUMPS with or without separator
This newly developed impeller fish pumps are specially suitable for loading live fresh- and saltwater fishes and shrimps from below 1 to over 2500 g in body weight, from production units up to 9-15 m in height to grading machines, holding basins or transport tanks. They work with 1-2 electric motors (380-420 V/50 Hz, other voltages on request) for fast prime- and main-drive (adjustable 100-1500 RPM), and a directly connected maintenance free gear drive and reaches a fish loading capacity of up to 10-30 t/h. The inlet- and outlet connections have a diameter of 63-200 mm (2.5-8.0"). The electric box can be controlled directly on the panel or by the supplied remote control unit (reach up to 200 m, IP67). The fish pumps made from stainless steel are mounted on a moveable trolley made from stainless steel or aluminum, fitted with 2-3 inflatable tires (25-40 cm diameter) and 1-2 stabilization feet, as well as 1-2 handles. They have compact overall dimensions with a relatively low weight . Flexible hoses with fast-coupling sets and a separator unit with 5 or 10 mm gratings which separate fish from water are available as accessories.
VACUUM PUMPS with or without lifting system
Adjustable fish sucking vacuum pump for loading of transport tanks (on truck). With two (hot galvanized or for saltwater in stainless) steel vacuum tanks (200 liter each) that suck and discharge alternatively, vacuum-pump (with double air-cooling) and 1 HP air compressor for pneumatic movements, automatic electrical regulation and 10 HP motor (220/380 Volt, 50 Hz, or different on request). The (up to 6 m) sucked fish are separated from the water through a (hot galvanized or for seawater in stainless) steel grill separator and thus send into a container connected with a weight indicator with electronic digital display, programmable either on loading quantity or working time.
On request the draining height is also adjustable between 1,35 and 3,05 meter trough an hydraulic power plant driving a piston that lifts and lowers the whole structure. By dimensions of 165 x 430 x 340 cm (maximum height 5,1 m) and a weight of 1.550 kg up to 15.000 kg of fish up to 1,5 kg (on request up to 3,0 kg) can be moved.
VACUUM PUMPS with or without weighting system
For the lifting of fishes to grading machines and/or the loading of
transport tanks etc. this fish vacuum pump is especially suitable. The
functional principle is relative easy but effective, which helps to reduce
unnecessary breaks and expensive repairs. The fishes (up to 5 kg in body
weight and up to 16 t/h) are sucked up to 5 m in height, via an inlet funnel
over a 6 m long suction hose (150 or 200 mm Ø) by two vacuum tanks (each 150
l) which work in exchange. By a 0.6 m2 large separator with 8 mm grid
distance, the fishes are separated from water and glide so directly into a
transport tank etc. The water and fishes leave the unit by a hose (water
outlet 200 mm - fish outlet 230 mm Ø), which can be adjusted in height from
90-150 cm. The live fish pump has dimensions (L x W x H) of 360 x 155 x 230
cm) and a weight of approx. 650 kg. The motor (400 V/50 Hz, 4.0-7.5 kw) is
integrated into the housing. The 3 transport wheels and telescopic legs
guarantee that the unit stands well and is safe.
MANUAL GRADING DEVICE for fry and fingerling
Originally developed at the Austrian Institute of Fisheries Economy in Scharfling, this simple but effective sorting device is perfectly suitable for sorting of fry and fingerlings in small to medium fish hatcheries and already used for centuries. The distances of the grating can be easily adjusted by shaping the device to a rhomb. The seawater resistant impregnated wooden frame keeps floating and an exact distance between the aluminum grates. The device is placed in one tank, than fishes are just put into the device, the smaller fish go thru the grates while larger ones can't pass and are placed in another tank. For grading into more than 2 size classes, the grates are enlarged by simply pushing the whipable scale-bar, and so on.
AUTOMATIC SORTERS with turning rollers
The automatic grading machines for life fishes works with a revolving rollers-system and a free adjustable grading process for 3 grads and outlets (120 mm Ø). Adjustable stainless steel rollers are driven by a 0,5 HP (220/380 Volt) geared motor reducer. A self priming 3,0 HP (220/380 Volt) pump which is available as accessories, supplies the water (900 liter/minute), to the rotating rollers and flushes graded fish down to the three outlets and to be piped by gravity to the receiving tanks or ponds. It is able to make three contemporaneous selections from 4 to 40 mm thickness. Stainless steel movable discharge outlets that can be used whether on the left or on the right side of the grader. As standard, all parts as: electrical control panel, flexible suction intake with terminal filter and three flexible connecting pipes for the discharge outlets. All machines are mounted on a hot galvanized steel trolley with three wheels, adjustable supports and shaft.
Type ALFA has dimensions of 195 x 75 x 110 cm and a
weight of approx. 200 kg, and is used for fingerlings (sorting distances 4 to 14 mm). The
grading capacity is up to 1 t/h.
AUTOMATIC GRADERS with moving fingers
This graders are made of aluminum and stainless steel and are available for various fresh- and sea- water fishes from Salmoniformes and Cypriniformes to Perciformes etc. The grading technology is based on 2-5 V-shaped channel with moving plastic fingers below, which moves the fish until the channel is too wide for the fish thickness and the fish are released to the collecting tanks below, from where they are flushed with water to the outlets, and additionally by pipes back to the holding ponds. During the whole grading process the fish are kept wet by water (submersible pump as option). The machines are mounted on a trolley with 2-3 wheels. Equipped with 380 V/50 Hz motor (230 V on request).
Graders with integrated fish counting systems on request.
ELECTRONIC COUNTERS for fry and fingerlings
This fry counters have been developed with particular emphasis on well-being of the fish. The counters operate according to the "free-swim" principle: the fry or fingerlings (0,2-50,0 g depending on species) are in their natural element all the time and swim through the counter unit by instinct. Thus the counting will in no way cause stress to the fish. The counters have patented nozzles that separate the fish by means of water so that each of them passes the photoelectric cell - a simple and reliable way of counting the fry with 98-100 % accuracy. The counters are fitted with reliable electronic components with memory. The electronic cylinder operates on chargeable batteries but may also be connected to 220 V/50 Hz. Sensor unit and electronic cylinder are both water-resistant. The counters are easy to use and to handle. No division according to size is required and only one person is required to operate or move the counter.
Each counter includes a stainless steel water pump (220-240 V/50 Hz, 940 Watt, 11 kg with a capacity of 12 m3/h), and frame to mount the counter on the edge of a tank or placing it in a tank or cage. As accessories kits are available to count fry from 0,2-0,5 g.
FISH COUNTERS for graders or pipes
This newly developed fish counter series made of aluminum and plastic was specially developed to count fast (about 4 t/h) and accurately (over 98 %) live fish like salmonids, cyprinids and percids (from 5-5000 g) after an automatic grader. The counter is simply connected to the outlet tube of the grader or any other tube.. Provided with programmed intelligence, the fish counter performs various controls (auto-test) and informs the user in case of failure. The electronic display provides the following information: number of fish counted, status and degree of sensivity selected. The two new sensors with transmitter and receiver modules are mounted into a slide and are provided with an electrical connector. The graphic display and the power supply cable are also equipped with an electrical connector (Input 90-220 VAC/15 VDC). The various connectors are connected in the junction box of the main module. All electronic parts are sealed, easily removable and replaceable by the user. The counters are available for fresh- or seawater use and supplied with a set of separators and two support legs. A reception tank/funnel with 160/200 mm diameter pipe connection is available as accessories.
PIPELINE COUNTERS for much fish
This fish scanners are based on a patented counting principle which gives both high capacity and accuracy (98-100 %). The fish flows freely through a pipe and passes an advanced camera/measuring system (CCD Camera chip) which will register the size and speed of the passing fish. The resulting data is then transmitted to a control unit which may handle as many as 4 channels (e.g. during grading) simultaneously. It is not necessary to have any space between the fish passing simultaneously. The robust and reliable electronics of the system will always provide the total number of fish passing through the unit. The splash-proof counters are easy to use and suitable for direct fish pump or grading machine feeding. Optionally an easy-to-use PC software which will in addition to presenting the accurate number, give you all the information you need from the counters. It gives you real time monitoring with key features like: number, weight (average/total/distribution), speed, efficiency, Reg. Unit status, lens check, systems log and printing the results.
The control unit (dimensions WxHxD 28x13x37 cm, weight 5 kg) is made from powder-painted marine aluminum case which is sturdy, splash-proof and user-friendly. The power supply is 100-240 VAC 50/60 Hz (consumption 10-33 Watt), 12 or 24VDC (150 Watt power inverter available as accessories). The input channels can power and control up to 4 CSE or 2 CSF registration units at the same time. It has fluorescent buttons and backlit display, and also connectors for auxiliary equipment like PC, and PLC control etc. The adjustable carrying handle can also lift the front of the control unit (to approx. 10º, 30º and 45º) for easy operation and a better view. As options an external siren (115dB) and a PC monitoring system (requires a COM-cable) is available. The control unit can easily be connected to a PC to monitor and log the counting.
The CSE-units are used for "dry"-counting (pipe 0-25 % full of water through the unit) and suitable for many applications.
The CSF-units are used for wet-counting (pipe 100 % full of water through the unit) and suitable for special applications.
All registration units are delivered with 10 meter cable, other lengths available on request.
UNIVERSAL SCALES with display post
This certifiable desk scales made from stainless steel are splash protected (protection class IP-65), strong and robust . The illuminated multi-display with 25 mm LCD-display, 5 function buttons, and 35-70 cm high post, as well as tare-, count-, percent- and add- function allow an multifunctional use. The display can run continuously or switch of after an adjustable time. The models have 4 adjustable feet, a RS232 output for a printer and an IR input for a remote control (not included), for an energy supply of 230 V/50 Hz). Desk scales for battery operation, on request. Optionally these scales are available with certificate.
UNIVERSAL SCALES with flat platform
This new scales with stable base, 4-cell measurement technique and corrosion free platform made from stainless steel (70 mm high) are universally to use. The display (27 x 9 x 4 cm) with 25 mm LCD digits, 100 % tare function and 1,8 m spiral cable can also be mounted on a wall (angle adjustable). It is possible to select continuous display or automatic switch off. The energy supply over an rechargeable accumulator with charger allows a mobile use. The models have two inserted transport wheels on the side and on the opposite side a hand grip. Optionally the scales are available with wireless display.
CRANE SCALES with security hook
This stable and professional hanging scales with robust cover made from aluminum (approx. 260 x 195 x 210 mm) are equipped with a 360 degree turnable security hook which is produced for 150 % over load and 500 % breaking strength. The 30 mm large LCD-display with illuminated digits, has an automatic tare function. The weight fixing function allows to weight the goods also during swinging load. The energy is supplied from a rechargeable accumulator with charger. All models models are suitable for the use with a remote control.
We deliver other scales, for ranges up to 10 t or a division from 0,01 mg on.
MOTOR PUMPS for any purpose
This self priming, compact and engine driven pumps are specially suitable for the use in aquaculture, agriculture and industry and can also pump sludge or small stones. Driven by a strong and economic 1-cylinder 4-stroke petrol motor, this centrifugal pumps are environmentally friendly and reliable. A transistor controlled starter guarantees easy running also after longer pauses. Type WH is for higher pressure and Type WM is specially suitable for seawater and chemicals as the pump casing is made from polyester. The types WT are for waste water and stones up to 3 cm diameter available. All types (except WX) are bordered with a sturdy frame. All pumps are delivered completely with pipe connections and ground filter.
PROPELLER PUMPS for much water
This single stage pumps with open axial propeller are suitable for less polluted water with suspended solids of up to 50 mg/l and a water temperature of up to 25 °C. The left running motor (380/400/500 V, 50 Hz, 1450 RPM, power factor 0,83-0,87 cos) has a failure runner and waterproof coiling. The motor is capsulated by a glide seal, the axial and radial wave bearing in water lubricated glide bearings. The propeller is made from bronze (CuSn10), the radial bearings from bronze and stainless steel, and the bolts and screws from stainless steel (V2A). All pumps are made according to DIN EN ISO 9906 class 2, protection art IP68) and are suitable for endurance run, timed operation or frequency regulation and are supplied with 10 m directly connected waterproof rubber cable. The installation can be in any angels, horizontally and vertically, as well as submerged hanging or free standing. The connection flange is C 200-300 DIN.
The standard outfit has a casing of painted grey-glue metal (GG25). Casings in aluminum or bronze are possible on request. A nieveau regulation, frequency control, motor monitor and operation counter are available as accessories.
SUBMERSIBLE PUMPS for endurance run
This for the mobile and static operation developed submersible pumps have a special sealing and lubricated bearings for the maintenance free endurance run in any position. Pumped can be all liquids with particle sizes of up to 7-10 mm, a weight of max. 1.100 kg/m3, up to 40 degree C and a pH-value between 4-8. The motor (1460/2900 RPM) is available for 400 V/50 Hz as standard (other voltages on request). A thermal protection and a double case cooling protect the motor from overload (IP68). The pumps, made from aluminum and stainless steel, are available with an extern or build in floating switch as accessory, so that the pumps work only when it is necessary.
UNDERWATER PUMPS for pipes
These compact submersible pumps in new design with more stages are maintenance friendly, and are developed for long resistance. As all metal parts like: housing, cable cover, motor adaptor, wheel, valve, inlet screen and outlet connection cable including couplings are made from stainless steel (AISI 304), these pumps are complete resistant against rust. Propeller and diffuser are made from Polycarbonate, the bearing from Polyurethane, and the sealing from special rubber material. The maximum outside diameter of these pumps is 99 mm or 4 inch (3 or 6 inch on request), so that they fit into a pipe. The outlet connection is 1-2 inch and the length of the pumps is 695-2368 mm and their weight 11-52 kg (depending on types).
MULTI PUMPS for many applications
This pumps with vortex propeller made from plastic can be mounted and used submerged inside the water (wet) as well as free standing outside the water (dry) and are suitable for particles up to 6 mm. Because of the strong ceramic bearing they are suitable for endurance run. All electric parts are embedded completely in plastic and a thermo-switch works as a overload protection. The split-pipe motor (220-240 V, 50-60 Hz) is specially energy saving and very maintenance friendly. The large prefilter caps (front and back) can be removed without any tool. The connections (pressure/suction) have 1,5 - 2,0 ". The pumps of this serial have compact dimensions and can be used for fresh and salt water. They are delivered complete with 10 m cable and plough, as well as mounting feet and handle.
We deliver also other pumps, for up to 500 m3/h or for over 100 m in height.
DIESEL GENERATORS for endurance run
These compact synchrony-generators are more powerful than asynchrony-generators. Motor, generator and exhauster are water cooled and need no air ventilation. The cooling water can be used for heating. They are installed into an encapsulate housing which guarantees low noises (52-54 dB). The units are easy to operate with the supplied remote control unit. The diesel consumption is about 0.3 liter per produced kwh.
ELECTRIC FISHING DEVICES with direct- or impulse-current
This save and powerful electric fishing
devices are successfully in use on all continents since over 20 years. Through the various
and sometimes problematic areas of use, a wide range of devices was developed which will
match nearly any requirement.
ELECTRIC STUNNING DEVICE for all fishes
This device is
specially suitable for the fast and easy stunning (electroanesthesia) of fishes (up to 50
kg/cycle) before killing and slaughtering. It works with electricity over a transformer
(Input 230 Volt, Output 42 Volt). All parts of the device are made of corrosion free
materials. The handle with buttons and lights is made of plastic, the electrodes are made
of brass with honeycomb-like plastic cover. The device is available with or without
plastic container (approx. 60 l) and cover.
ELECTRIC STUNNING SYSTEM for much fishes
This device is specially suitable for the save and reliable stunning (electroanesthesia) of fishes (up to 200 kg/cycle) before killing and slaughtering. It works with electricity over a transformer (Input 230 Volt, Output max. 160 Volt) with 3 adjustable regulation knobs for the pre- and main stunning process which allows slowly increasing of the current and reduce internal damage of the fishes. In normal cases the knob is in the middle position, in special cases i.e. if always the same fish size or the same fish species are stunned, the knobs allow to optimize the results. All parts of the system are made from corrosion free materials. The container with cover is made from plastic, the electrodes which are fixed on two sides are made from stainless steel. The containers are available in 3 different sizes (90, 280 or 610 l volume).
The fishes are placed in the plastic container together with water and the cover is closed. The control box should be mounted dry on a wall. For the stunning, the button on the side of the control box is pressed, while the stunning process is controlled by a lamp and terminated by an acoustic signal.
SPECIAL FISH KNIVES for the industry
This special stainless steel knives are designed for long live and resistance to hard wear. These can be used for many hours without problem to archive high productivity. The blades are finished by hand with high quality steel - a guarantee for maximum cutting precision and easy sharpening. Either stiff or flexible blades are available according to requirements. The ergonomic design of the handles makes them easy and save to hold. The various designs were developed in conjunction with users. They take into account both the type of cutting as well as the size of the user's hands. The special green plastic material used gives the handle its firm hold.
We prepared 3 special fish knife sets for you:
The STANDARD Fishknife Set includes: 1 Herring-, 1 Carp-, 1 Fish-, 1 Cooking-, 1 Stitch-, 2 Slaughter- and 2 Fileting-knife, with blades from 4,5 to 26 cm.
The PROFI Fishknife Set includes: 1 Fishcut-, 1 Eel-, 1 Mackerel-, 1 Salmon-, 1 Fish-, 1 Gut-, 1 Skinning-, 1 Bone-, 1 Strike-, 2 Slaughter- and 2 Fileting-knife, with blades from 5,5 to 31,5 cm.
The COMPLET Fishknife Set includes all 3 sets (30 different special knives). All models are also available as single knives.
Trimmers for meat preparation, on request.
AUXILIARY FISH GUTTING DEVICES with or without cleaner
This gutting devices are in use since more than 20 years and a valuable help for small and medium processing plants. They allow to gut and clean fish (like trout) from 150-1000 g (optionally up to 2000 g) in one rational working process, without give the fish out of the hand. There is also no need for turning over the fish in your hand as all sequences of operation start from the vent. If the operator should slip in the direction of the blade while cutting, an injury can nearly be excluded.
With the adjustable and save gutting blade the ventral wall of the fish is cut starting from the abdomen. As hygiene is the most important factor when processing fish, injuries of the guts are also excluded. The suction head has two scrape edges at its lower rim. While passing through the fish, all remains (like kidney and blood) are removed. By pressing a button, an automatic knife comes down and cuts the gorge, which is than sucked and stored in a container. Optionally, after gutting the remaining blood is removed by the rotating (1500 RPM, 20 cm diameter) round washing brush. The rational working sequences enables one person to process 300-400 fish per hour.
The new reworked and improved version (wall- and stand models) have a gutting head which can be removed without tools and is dismantled in seconds, which allows good cleaning and disinfection. The removable suction head fits to usual 120 l waste containers, which allows easy and fast replacing and deposition. These stainless steel gutting devices are delivered complete as table, wall or stand units with or without compressor and vacuum cleaner and with or without round rinsing brush.
AUTOMATIC GUTTING MACHINE for round fish
This robust fish processing machine (for fishes (like trout, charr, bass, mackerel and herring) is made from stainless steel. A main point at development was the removement of complicated and failing technique. The compact machine (LxWxH 2,6x0,6x1,9 m, weight 350 kg) is nearly maintenance free. Complicated and expensive engagements are not necessary and the function via a button allows for rentable gutting (removement of intestines and gills). The running speed of the machine is adjustable, to allow to feed the machine with the fish up to 3000 pc./h with a weight between 150 and 1200 g (max. adapted to the double size difference e.g. 300-600 g). The water demand is about 500 l/h, air pressure min. 6 bar, electricity 1,2 kw/h 380 V/50 Hz (others on request). As accessories a feeding tank (before the machine) and a control sunk (after the machine) is available.
MANUAL SCALING DEVICE for all fishes
This fish scaling device is well protected from spray water, safe in operation and securely insulated, tested to 4000 V. The 230 V/50 Hz ICE standard 0,1 kw motor can be used continuously. The machine LxWxH of 23 x 24 x 19 cm with a weight of 9 kg, can be connected to a grounded or non-grounded wall socket. The cover of the laminated, flexible axle (160 cm long) consists of two layers of steel, one layer of insulating compound and one layer of plastic. The ball bearings in the top, with which the fish is scaled, are waterproof and all outside parts are rustproof. The device is supplied completely with handle, feet, 160 cm cable and plug.
As accessories a 6 mm strong plexiglas cover (LxWxH: 84x50x29 cm) is available, under which the fish can be scaled to avoid spraying of scales during scaling.
AUTOMATIC SCALING MACHINES for many fishes
The robust, solidly constructed machines with belt drive offer perfect scaling technology, with their design (body in stainless steel, automatic time selector and control valve for reduced water consumption) and complete operational safety (auto-stop control, motor protection, restart protection).
Scaling takes place at the bottom and sides of the machine and offers the advantages of short (approx. 1-5 minutes per scaling cycle), low-noise scaling cycles and reduced water consumption. The water used in the scaling process is accumulated, so that the fish are thoroughly washed and a soft cushion of water is formed. This provides a flexible support and ensures that the scaling action is very gentle (fishes are not exposed to heavy bumps or impacts). The auto-stop control automatically stops the machine when the loading lid, top lid or release flap is opened. Gentle release is ensured because the machine restarts slowly and the start button must be pressed and held down, which is an added safety feature. An automatic shut down with manual restart guards against automatic start-up after a power failure. The scaling machines are supplied either with a karborundum drum for soft fish or small scales and with a round-hole drum for clams and hard fish or large scales. The machine is also available with a dirty water drain on the left-hand side (standard at the right side).
FILETING MACHINE for some fishes
machine allow to fillet all fish with up to a height of 110 mm and a weight of 100-1000 g
fast and exact, without gutting the fish. The machine is made of stainless steel and
easily cleaned with water. A height output (approx. 100-200 kg/h) and safety measurements
allow a fast working. The compact design (LxWxH: 118 x 56 x 127 cm) and the low weight
(approx. 88 kg) allow to use it on nearly any place.
FILLETING MACHINE for much fishes
The transformation of fish into fillets offer an interesting value added profit margin and is directly depending with the filleting costs. This new generation of filleting machines now comes in different sizes, with dimensions suited to various fish sizes and species (Salmon, Trout, Charr, Whitefish, Perch, Pikeperch, Bass, Bream, Mackerel, Bonito, Tuna, Pollack etc.) permitting an efficient filleting of fish with minimum loss of product and high yield production of 50-80 % (salmonids) of splitted fillets. The productivity depends on the operator skill and process chain but is about 10-30 fish/min (approx. 1-3 t/h depending on fish size). The yield is directly depending on the state of the freshness and consistency of the fish, its fat content and maturity, as well as the cut of the head (I-, C- or V-cut). The simple mechanic solutions based on rigorous geometric principles in combination with a sensitive system to the thickness of each fillet, allow the machine to process fishes of various sizes (from 0.1 to 6.0 kg) without setting changes. The type number means the maximum fish height between anus and dorsum in mm, which the machine can handle. The smart design and sturdy construction (made in stainless steel) insure a long life to meet high conditions and norms of hygiene. All machines work with 2 or 4 blades (and 1 or 2 electric 400 Volt/50 Hz motors), are efficient and easy to clean and maintenance. Each machine has 2 wheels for easy movement. The standard height of the fish inlet is 80 cm and the fillet outlet 77 cm above the ground (other dimensions are possible on request). The beheaded and gutted fishes are loaded by hand into the machine. A 10-12 cm high transport belt carefully transfers (approx. 20 m/s) the fish to the round blades knifes which run not parallel but axial. The blades cut the fillets and separate the waste bones, thus saving over 50-75 % of the production time. The filleting machines are available with 2 or 4 blades either for the production of fillets with belly bones (ribs) or for the production of fillets without belly bones (ribs). The water requirement during filleting is about 300-500 l/h. A sharpening tool to use directly on the machine is available as accessory.
The following 2 blade types are available as standard:
The following 4 blade types are available as standard:
Deheading machines, on request.
BONE CUTTERS for fish filets
With this compact manual devices made from stainless steel, you can cut (Cutting wide 9, 15 or 30 cm) fast and easy the Y-bones in fillets from bony rich fishes (like cyprinids, etc.). With this cutting in small distances (every 3-4 mm), the numerous Y-bones are chopped in very small pieces, so that they are no longer detected or dangerous in the fillets and can be eaten comfortably with the meat.
With a special adapter (available as accessories) you can also cut now the fillets in chips or stripes (and, for example serve it fried or on salad).
There is also a stripe or cube cutter available (i.e. for herring or salmon) which saves about 50 % of working time. The cutting distance can be chosen in steps of 4 mm, i.e. 8, 12, 16, 20 mm (please mention at order).
On request also an electric bone cutter is available.
PINBONE REMOVERS for fish filets
For removing of small and unwanted pin-bones from larger fresh, de-frosted or smoked filets (from about 150 g filet weight on, like: Salmons, Trout and Chars) different pinboners, from compact handheld devices to automatic band machines, are available. All machines (motor: 220-240 V, 50-60 Hz) are building from non-corrosive material to the quality and work with the same principles. The deboning unit can je adjusted in height, angel and speed. The belt can also be adjusted in speed. During operation, the machine units are kept clean with water or air. The unique mechanical picking action of these pinboners gently removes neck- and pin-bones (90-95 % at single- and 95-100 % at twin-systems), leaving fillets looking their best. Pinboning is not only removing the pin bones, but important is also not to break pin bones, not to bleach the fillet by water, and keep the fillet without gaping. They are very user and maintenance friendly and allow fast working. The pinboners are ideal for use by fish processors, fish mongers, fish shops, fish restaurants etc., giving excellent results with best possible yields and minimum weight loss. Optionally all machines are available as twin models (with 2 heads after each other). As accessories also a vacuum system is available which sucks away the bones and water from the fillets.
SKINNING MACHINES for fish filets
This fish skinning machines (skinning wide max. 430 mm, skinning speed approx. 19 m/min) are manufactured with the use of exclusive and high quality components and according to the newest technical and hygienic regulations. The are made of rust free stainless steel, the transport belts and rolls are made of plastic. Additional plates inside guarantee a very long live of the robust machines, which have no electronic parts which could become defect. All machines are easy to use and very maintenance friendly, which saves additional costs.
All models work with an 230/400 V (50/60 Hz) 0.75 kw (1.0 HP) motor and are equipped with a foot-switch, turnable plate, adjustable knives and a water spray unit. With all machines the filets can be either skinned with stump blade or also with sharp blade. At skinning with stump blade (silver skinning) nearly no waste is generated, at working with sharp blade (deep skinning), the skinning depth can be adjusted from 0 to 4 mm. Types CF are equipped with a cog-roller (for fish with a tough or thick skin) and types CS with cleaning-centrifuge (for fish with a soft or thin skin).
The Stand-models are open and have a beared knife-holder and fixable turning-wheels. The Band-models are suitable for large quantities and guarantee highest security during working, because they are switched off if the cover is opened. The skinning depth can be adjusted here from 0 to 5 mm. They have a beared and from outside adjustable pressure unit (opening height max. 70 mm), which adapts automatically to the filets and is available with different performance depending on the fish species (soft wheels, hard roller for salmon or soft balloon). Optionally, the band-models can be equipped with special designed curved blades, which allow in one working process to skin and remove the red-brown muscle segments along the sides of the sensory canal from fresh or smoked filets completely which was one of the most difficult problem during normal skinning by hand. Additionally they have a removable charging and forwarding belt.
SLICING MACHINE for fish filets
This slicers are based on a proven combination of a sturdy ground machine and a perfect slicing glide. Due to the good quality and the modern technique of the slicers the best slicing results are achieved with yield of approx. 99 %. The plate and glide is from stainless steel, the other parts are made from polished and eloxided aluminum. The blades are made of specially chromed steel and last very long. All this features allow a very economic operation for the processing fillets of various fish species. There are different slicing machines available, from the simple manual to the controlled automatic slicer (portion or double lane slicer on request).
VACUUM PACKING MACHINES for foods
At this table models the vacuum chamber and housing is made from stainless steel and the high transparent lid of acryl glass. An easy and automatic working process is possible through the analog process time control pane (and from type "B-35" on also through the digital sensor control with 10 programs). A gas injection system and soft-air ventilation is also possible from type "B-35" onward. The machines have a single sealing bar configuration (single time sealing-cutting system on request) and are also available with a double sealing bar configuration from type "B-42" onward. The professional vacuum pump 230 V/50 Hz (vacuum time 10-60 seconds) and back ventilation guarantee a service friendly construction. A liquid insert-plate is available as accessories.
Larger moveable floor models or double chamber systems on request.
FLAKE ICE MACHINES with or without storage container
This scale ice makers are made of high quality stainless steel and plastics, have small dimensions and a high production capacity. They are easy to use and the innovative technique guarantees a stable quality of the flake ice and are highly economic. All machines are FCKW-free (R404a or on request also CO2), have adjustable feet and an automatic water remover. Other voltages, larger machines (also without refrigeration unit) on request. All models are also available with a liquidificator set on request, and as options are salt-dosing and automatic-cleaning systems available.
As accessories isolated storage containers for 70 to 1.300 kg ice are available, which keeps the ice cool and easy to use, even after longer storage. The 4 smaller units are also available with integrated storage container (40 mm isolated) for each 70 or 210 kg ice, where the ice machine is included above.
Capacity in 24 h at a temperature of +18 °C ambient-air and +12 °C water-supply as well as -7 °C flake-ice.
ELECTRIC PRESSURE CHAMBER for smoking and grilling
Our implements are produced by modern machines and they are installed and approved accurately by hand. Due to continuing further development and in close cooperation with the leading professional institutes and associations of fish- and meat industry, as well as due to many suggestions from application in gastronomy, this devices are the most matured smoker, a fact that is confirmed by the best cooks all over the world, as well as by FIMA (marketing institute of the fish industry), by many professional associations as for example VDK (association of cooks) and last but not least by many foreign unions and professional hotel schools. This smokers with its approved technic are in operation worldwide. It is a product for special gastronomy as smoking is possible at any time in presence of the customer - also in delicatessen-shops, in the groceries store, at the butchers, at the party-service, restaurants, beer-gardens etc.
In the electronic pressure chamber grill and fumigator you can easily prepare hot or cold smoked specialties ready to serve within very short times. You can work with the oven in closed rooms - smoking indoors - always a pleasure. Fish and meat are not cooked directly by firewood or infrared heat, but indirectly by the hot air inside of the pressure chamber. The tightly closing door guarantees that only a very small amount of smoke and thus nearly no moisture are let out. Proper gravy will be preserved, which is a great advantage in comparison to other smoking processes. Fish is put, with its belly up, onto the special grates. Flat-fish, fillet, meat are smoked on the flat grids. Flavor and proper gravy will remain. Cooking without addition of grease, therefore low on calories. Constant temperature and optimal diffusion of smoke (pressure) will lead to a good cooking and a golden-brown color of the smoked food. After the timer has run off, smoke will deposit on the inside of the walls. The darker they are, the better the taste will be. The special heat-resisting sealing of the doors needs neither maintenance nor renewal. Very low energy costs, over 60% of cooking-terms you can grill and cook without electricity. The double-casing guarantees that no water can enter. All electric parts are protected. Both the interior and exterior of the smokers as well as tin-plates and grates are made of stainless steel. No rusting or loss of color and enamel. Very short pre-heating times and very low energy consumption due to completely insulated double-casing. Heating with thermostatic regulation, automatic timer. Switches and control lamps on the front side a design suitable for modern kitchen. A new version (HS-36) in Gastro-Norm (GN) is also available. Herewith all usual (GN 1/1 to 1/3) containers or grids from other kitchen equipment will also fit in this smoking oven (or visa versa). This allows easy and better use in the professional kitchen. The standard outfit consist of stainless steel vessel with smoke- and drip-pan, 1-2 racks and 1-2 grids as well as user manual with recipes.
SMOKING CHAMBERS for excellent product quality
SMOKING CHAMBERS for excellent product quality
With this smoker you will get a state-of-the-art and high-quality product finished through CNC-production, containing over 30 years of development and experience. Most remarkable features are simple operation and extremely compact design. With our special integrated smoke-gas-guidance, your smoke goods will get evenly cooked and aromatized. The smoke-gas-guidance takes place over an additional sheet metal in the back to the outlet (see function sketch). With this you will get an optimal use of the smoke, the temperature inside the oven is very evenly and the dripping of condensate onto your smoke goods is safely avoided. The aluminum coating offers advantages compared to other coatings as food-proofed and highly corrosion- and heat-resistant. Stainless steel is 100% corrosion-resistant, acid- and leach-resistant, easy to clean thus allow flexible use (smoking of fish, meat, sausages, poultry and savage meat in the same oven possible). This smokers are available in different sizes made of aluminum covered steel or stainless steel with interchangeable wood- or gas firing, for hot- and cold smoking of fishes as well meat and sausages. All smokers come complete with dry-drip-tub and bouncer. Additional smoking grids, roasts, spits or hooks, smoke pipes (130 mm diameter) also with rain cover are available as accessories.
For hot-smoking a fire is kindled in the burning-box. The temperature will be set by the draft regulation. As soon as the smoked goods are dry and cooked, the draft regulation is to be completely closed and the fire is covered with smoke-flour to get a good smoke development. You will get best smoked-results by using pure beech wood. More simple, more comfortable and above all more economically you will smoke your goods with the gas heater.
Smoking: Cutting down of the heater to half power and simply putting the filled smoke-flour pan on top of it. When the smoke development is completed, the gas heater is switched off and the smoke process is finished.
ISOLATED SMOKING DEVICES made of stainless steel
Good and consistent curing results appeal to your customers and widens your customer base best. This electrically (380 Volt/50 Hz) heated smoking devices have a capacity of 100-300 fishes (resp. 70-200 kg meat) per smoking time of 30-90 minutes. The 3 switchable (2/4/6 kw) heating coils with the precision thermostat, timer and thermometer produces heat and smoke for cooking and smoking slowly. A smoke pipe connection (120 mm), and the well double isolated (50 mm) walls and door prevents heat loss and makes curing possible also in closed rooms. The fish to be cured either be laid on the racks or hung on curing hooks on the racks. As accessories special curing hooks, racks and curing meal (wood chips) are available. A build in connection pipe for/and an external smoke generator (for cold smoking), as well as a smoke pipe regulation valve, smoke pipes and bows are available too. For a rational working, trolleys (WxDxH approx. 61x48x110-185 cm with 4-10 layers) and build in ramps are available.
LIQUID SMOKE SYSTEMS for stable product quality
This systems are completely different to traditional ones in a way, that they need no smoke generator and burner, because instead of a generator, a tank with liquid smoke will be brought to a pressure of 3-5 bar.
At this patented technology, liquid smoke will be spreaded via an ventilation system over nozzles and recycled during closed vents. During this process a steam- and gas phase is build, which generates a non visible smoke. This "smoke" is physically identical with conventional smoke, with all durability- and taste giving substances (carbonyls, acids and phenols) but has no tarphase and other undesired matters (Benzo-a-pyren).
The complete system is microprocessor controlled and allow easily the programming of temperatures, moisture, times etc. as well as to save up to 99 programs (with 20 steps each). The actual and required parameters as well as alarms etc. are shown on a digital display.
For the full automatic cleaning process (without aggressive cleaners or personnel) all equipment is placed in the cabinet and the program is started - that's all! Beside smoking, with this cabinets you can also curing, steaming, cooking, backing, roasting etc. all with an always stable product quality.
Extendable universal multi camber flow-through systems on request.
FRESHWATER FISHES with quality
Arctic Charr (Salvelinus alpinus) and Lake Trout (Salmo
Grayling (Thymallus thymallus) and Danube Salmon (Hucho
Pike (Esox lucius), Pike Perch (Sander lucioperca)
and Burbot (Lota lota):
Siberian Sturgeon (Acipenser baerii): An easy to keep sturgeon which is used mainly for aquaculture and caviar production (available from fertilized eggs to pregraded females).
Russian Sturgeon (Acipenser gueldenstaedtii): A beautiful sturgeon (light scutes on dark ground) which is well accepted as ornamental fish for garden ponds.
Ship Sturgeon (Acipenser nudiventris): A rare and interesting sturgeon which builds also freshwater resident populations (in the Ural and Danube rivers).
Sterlet (Acipenser ruthenus): A slow growing sturgeon which is mainly used for restocking (in the Danube River) but also for the aquarium trade (available also as albino).
Beluga (Huso huso): The "Caviar fish" with the best growth rate, within 2 years a weight of up to 10 kg can be obtained with a water temperature of 20° C.
We produce over 20 fish species during the year like: Chondrostoma nasus, Barbus barbus, Silurus glanis and others.
SPAWNING AGENTS for finfish
In nature, reproductive development and spawning in finfish is
controlled by environmental factors such as temperature, photoperiod, nutrition, water
quality, and presence of spawning substrate. In aquaculture, it is not always possible or
economically feasible to replicate natural conditions especially as many species are now
grown some distance from their original geographic location. Thus, endocrine or a
combination of endocrine and environmental manipulations are utilized to facilitate
reproduction. In the last decade significant research has been conducted worldwide on
ripening fish sexuality using various preparations.
TRANQUILIZERS for aquatic animals
Eugénol(Clove-oil) is a very useful, natural and environmental friendly tranquilizer, which can be used for various fish species. A higher tolerance against longer exposure times gives a greater security and makes the application under practice condition much more easier. Because of the low dosage (30-50 ppm) there occurs also no alteration of the taste of the fishes. Available as pure oil in vials of 10 or 100 Milliliter.
DISINFECTANTS for aquaria and aquaculture
We supply various chemicals for
disinfection in aquaculture and
aquaria. Some chemicals are in some countries only allowed for fish which are not used for
human consumption, like eggs, spawners or ornamental fish.
for disinfection of equipment, fish and eggs;
Chloramine against gill diseases and Myxobacteria;
Copper sulfate against gill diseases and algae;
Virkon against bacterioses and viroses;
STARTERBACTERIA for ponds and recirculation systems
For the startup and stabilization of biological filters in recirculation systems, but also for biological cleaning of water in culture or garden ponds, special bacteria sets have been developed. The highly active bacteria also help to stabilize existing or old filter systems. Available as liquid product in containers of 5 l or as dry product in containers of 400 g, each reaching for up to 50 m3.
CONSULTING for aquaculture and fishery
An European-wide 25 years' experience and know how in the field of
aquaculture, longtime cooperation with important scientific institutes and researchers,
worldwide contacts and the experience-exchange on numerous international congresses and
symposiums are the base of our respectable and successful consulting in management of
waters and fish stocks, and in planning and construction of production systems, not only
for freshwater but also for brackish- and seawater.
Management of fish-stocks in fresh- and seawater. Solutions for parasite-problems, slow growing fish-stocks or to low catch-quotes. Suggestions for high catch-compulsion. Breeder-catch, re-production and reward rearing of autochthone and sensible fish species and forms (with zooplankton).
We also developed a new economy-business plan model, based on a table calculation program (like MS Works, Excel or Lotus). You can enter all variables like: feeding rates an conversion factors, survival and selling rates, stocking density and tank sizes, prices etc. and it will calculate approximately forecast growth and stocks, investment and operation costs and all other requirements.
Get in touch opportunely is important for rational planning and success!
PUBLICATIONS about fish and farming
The Sturgeons and Paddlefishes (Acipenseriformes)
of the World: Biology and Aquaculture.
and culture of sturgeons in captivity has advanced rapidly over the past several years.
With recent developments, the requirements of the industry have changed, and the
techniques used have also evolved and been adapted to meet these changing needs. Based on
experience gained in the the former
Sturgeon Fishes (Acipenseriformes):
Science as Art.
Sturgeon illustrator Paul Vecsei and sturgeon farmer Martin Hochleithner are both internationally well known specialists in the field of sturgeon research and aquaculture. In this volume, they showcase the numerous sturgeon species and highlight the plasticity of sturgeon morphology (both within and between species) using more than 130 detailed illustrations and many summary tables. The material in this book is the culmination of 5000 hours of scientific illustrations. Each illustration is of an individual fish and is extremely accurate. They are made in the technique of pointillism, a known fine-art technique. Each picture is made by small dots, which, when viewed for a distance, creates a very detailed rendition of shape and form. Sturgeon aficionados, sturgeon experts and art lovers will appreciate the collection of illustrations in this unique work.
The Bibliography of Acipenseriformes:
With over 10000 References.
This bibliography, which includes nearly all publications from around the world, and covers all Acipenseriforms and a range of topics, is intended to serve as a ready reference for researchers, fisheries managers, aquaculturists and conservationists who work with this ancient fish group. The numerous references are listed alphabetically by author(s) and chronologically by year(s), as the original title. Almost all sturgeon- and paddlefish species are threatened or endangered. Information on them is by no means complete, whether in fields related to sturgeon culture, biology, ecology or management. Due to the current rate of wild-stock exploitation and environmental degradation, the availability of new information might prove crucial for their survival. This is an attempt to disseminate information about work carried out to date, and to increase its availability.
The Bibliography of Acipenseriformes:
Update of the 2000's.
This bibliography, which covers all Acipenseriforms and a range of topics, is intended to serve as a ready reference for researchers, fisheries managers, aquaculturists and conservationists who work with this ancient fish group. Almost all sturgeon- and paddlefish species are threatened or endangered. Information on them in any field is by no means complete, whether related to sturgeon culture, biology, ecology or management. In many aspects sturgeon biology is very different from that of other fishes, and techniques suitable for other species may not work with them. Due to the current rate of wild-stock exploitation, the availability of new information might prove crucial for their survival. This is an attempt to disseminate information about work carried out to date, and to increase its availability. This is the most important and comprehensive bibliography about Acipenseriformes, and includes nearly all publications from around the world. The references are listed alphabetically by author(s) and chronologically by year(s). This update includes the years 2000-2009. This update is already included in the bibliography on CD-ROM.
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Pricelists you can get at
Unterbrunnweg 3, A-6370 Kitzbuehel/Austria