Acronym NA
Category
Aquaculture
Title Nutrient requirements of Atlantic cod (Gadus morhua) larvae at first-feeding Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Kristin Hamre Coordinator email kristin.hamre@nifes.no
Coordinator institution
NIFES - National Institute of Nutrition and Seafood Research (Norway)
Institutions involved
NA
Start year 2008 End year 2011 Funding (€) € 952,206 Website https://prosjektbanken.forskningsradet.no/en/project/FORISS/185006?Kilde=FORISS&distribution=Ar&chart=bar&calcType=funding&Sprak=no&sortBy=date&sortOrder=desc&resultCount=30&offset=270&ProgAkt.3=HAVBRUKS-Havbruk+-+en+n%C3%A6ring+i+vekst Summary In nature, marine fish larvae feed mainly on copepods, while in intensive hatcheries, Atlantic cod are fed rotifers the first month after first-feeding, Intensively cultured cod larvae grow at a much lower rate, (10 compared to 13->27 % per day; Mcqueen McQueen Leifsson 2003; Otterlei et al., 1999) and develop more deformities (Imsland et al., 2006) than larvae cultured semi-extensively. Of the commercially produced cod in Norway in 2006, 30-80 % had skeletal deformities (Lein et al., 2007). Intensive marine fish hatcheries world wide have similar problems with deformities as we find for cod (Cahu et al., 2003). Sub-optimal nutrition in larvae fed rotifers is one possible reason for the inferior performance of intensively, compared to semi-extensively reared larvae. In the present Project we identified nutrients that potentially could be too low in rotifers and thereby inhibit growth and development, enrichment procedures for these nutrients in rotifers were developed where possible and requirement studies were run for a range of microminerals. The outcome of the project was improved enrichment procedures for rotifers and new knowledge of nutrient requirements in cod larvae which probably can be extrapolated to other marine fish species.
Keywords
Land-based aquaculture;
Cod;
Fish;
Diets;
Larval rearing;
Larval development;
Marine Region
76
Not associated to marine areas
0
Marine Region Map
