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INRAE

24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

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INRA Experimental Fish Farm of the Monts d'Arrée

Recirculated Water Fish Production

Recirculated Water Fish Production

Fish production system with recirculated water

Semi-industrial RAS composed of 10 tanks of 6 m3 each. Production: 7 t of trout per year

Technical description

Semi-industrial RAS (20-25 kg feed/day). Composed by 2 biological filters, a biological moved bed by a compressor (120 m3/s) and a drum filter with 60 μm mesh. The 10 production basins are equipped with automatic on-demand feed distributors. It is possible to record the feeding behaviour of fish
 

Remote monitoring and control

Measurement of new and recirculated water flows, continuous measurement of O2, pH, redox couple, CO2, and temperature
 

Temperature

Natural temperature (5-23°C)
 

Oxygen

Automatically monitored and manually adjusted
 

pH

Managed by addition of corrector (sodium bicarbonate) and continuously monitored
 

Contact

LaurentLabbé
Barrage du Drennec
29450 Sizun, France
Phone: +33 2 98 68 89 36
E-mail: Laurent.Labbe@rennes.inra.fr