Mass-production of cod fry (Gadus morhua L.) in a large basin in western Norway - a new approach

• Main Authors: Øiestad, Victor, Kvenseth, Per Gunnar, Pedersen, Torstein
• Format: Report
• Language: English
• Published: ICES 1984
• Subjects: cod larvae; torskelarver; survival; overlevelse; growth; vekst; VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921; VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452; VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923; Norway; Gadus morhua
• Online Access: http://hdl.handle.net/11250/104003

In February 1984, the fresh water in a small lake was replaced by seawater pumped from 40 m depth. Four-day old cod larvae were transferred on 11 and 26 April into this seawater basin, which was 5 m above sea level with a volume of 23 000 m3. The growth and survival of the two cod larva populations were monitored until late June, when the basin was drained and all surviving cod fry collected and transferred alive to the Aquaculture Station Austevoll. The diet of the cod larvae and fry was monitored, as were densities of zooplankton, water temperature, and oxygen saturation.