Objective Recirculating Aquaculture Systems RAS offer significant advantages over open aquaculture systems. These advantages are heavily underutilized because application of RAS is limited. Growth retardation is the problem and until it is solved economic feasibility of aquaculture in RAS remains marginal significant aquaculture production in RAS will not be established and the advantages of RAS remain under-utilized. Growth retardation has been observed for most species cultured in RAS but the causes remain obscure. The turbot industry was the first aquaculture industry to be heavily affected by growth retardation as it was the first marine aquaculture industry that applies RAS on a large scale Growth of turbot in RAS is 15 20 lower and feed conversion rates are 0 3 higher compared to flow through systems. Individual farms have tried but were unable to solve the problem by themselves. Therefore they need to join forces with other farms and RTDs in this project. Without elimination of growth retardation it is either back to flow through systems or an insecure and marginally feasible future with RAS. We hypothesise that growth retardation is due to accumulation of growth inhibiting factors GIF in the culture water Both the fish and bacteria are believed to produce GIF.The objectives of this project are Exchange analyse and document the results of obtained by individual farm experiments over the years. Establish the production presence and effects of GIF by the fish and bacteria Investigate means for GIF removal and prevention of its production. Establish the physiological status of fish cultured in RAS Overall it is foreseen that this project will result in a large increase of our knowledge and understanding of growth retardation in RAS This would be a large step towards elimination of growth retardation in marine RAS which is of major importance for all future aquacultures in RAS... Fields of science agricultural sciencesagriculture, forestry, and fisheriesfisheriesnatural sciencesbiological sciencesmicrobiologybacteriology Programme(s) FP6-SME - Horizontal research activities involving SMEs: Specific activities covering wider field of research under the Focusing and Integrating Community Research programme 2002-2006. Topic(s) SME-1 - Co-operative Research (all areas of science and technology) Call for proposal FP6-2004-SME-COOP See other projects for this call Funding Scheme COOPERATIVE - Coordinator STICHTING DIENST LANDBOUWKUNDIG ONDERZOEK EU contribution No data Address Costerweg 50 9101 WAGENINGEN Netherlands See on map Links Website Opens in new window Total cost No data Participants (10) Sort alphabetically Sort by EU Contribution Expand all Collapse all SEAFARM BV Netherlands EU contribution No data Address Jacobahaven 4 KAMPERLAND See on map Links Website Opens in new window Total cost No data ECOMARES MARIFARM GMBH Germany EU contribution No data Address Buelker Huk STRANDE See on map Links Website Opens in new window Total cost No data FRANCE TURBOT SAS France EU contribution No data Address Le Bon Port 305 L'EPINE See on map Total cost No data BLUEWATER FLATFISH FARMS LTD United Kingdom EU contribution No data Address Dinmor Quarry Llangoed ANGLESEY See on map Total cost No data INSTITUT FRANCAIS DE RECHERCHE POUR L EXPLOITATION DE LA MER France EU contribution No data Address Rue de Jean Jacques Rousseau 155 ISSY LES MOULINEAUX See on map Links Website Opens in new window Total cost No data WAGENINGEN UNIVERSITY DEPARTMENT OF FISH CULTURE AND FISHERIES Netherlands EU contribution No data Address Marijkeweg 40 338 WAGENINGEN See on map Total cost No data UNIVERSITE DE MONTPELLIER 2 France EU contribution No data Address Place Eugene Bataillon 14491 MONTPELLIER See on map Links Website Opens in new window Total cost No data GROENTE - EN VISKWEKERIJ CORNELISSE BV Netherlands EU contribution No data Address Meanderlaan 9 THOLEN See on map Links Website Opens in new window Total cost No data ECOMARES ZEELAND VIS BV Netherlands EU contribution No data Address Krab 12 YERSEKE See on map Links Website Opens in new window Total cost No data UNIVERSITY OF WALES SWANSEA SCHOOL OF BIOLOGICAL SCIENCES United Kingdom EU contribution No data Address Singleton Park SWANSEA See on map Links Website Opens in new window Total cost No data