| dc.contributor.author | Nakken, Odd | |
| dc.contributor.author | Dalen, John | |
| dc.contributor.author | Hylen, Arvid | |
| dc.contributor.author | Randa, Kjell | |
| dc.contributor.author | Smedstad, Odd M. | |
| dc.date.accessioned | 2008-06-20T13:28:01Z | |
| dc.date.issued | 1983 | |
| dc.identifier.citation | This report is not to be quoted without prior consultation with the General Secretary. | en |
| dc.identifier.uri | http://hdl.handle.net/11250/100195 | |
| dc.description.abstract | An acoustic survey and a bottow trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1983. The two surveys gave different results. The acoustic survey showed a 50 % reduction from 1982 for the Barents Sea stock of young cod. The largest reductions were found for the 1977-1975 year-classes. For haddoek the reduction in the total stock of young fish was about 48% with the largest reductions found for the 1998-1975 year-classes. The bottom trawl survey showed no such reductions of young fish. In this survey the indices for the younger age-groups (2-5) were higher in 1983 than in 1982 for both cod and haddock. In both surveys the amount of older fish (6-l0+) was significantly lower in 1983 than in 1982, mainly because the abundant 1975 year-class had reached maturity and had migrated out of the investigated area. | en |
| dc.format.extent | 885055 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | eng | en |
| dc.publisher | ICES | en |
| dc.relation.ispartofseries | ICES CM documents | en |
| dc.relation.ispartofseries | 1983/G:15 | en |
| dc.title | Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1982 | en |
| dc.type | Working paper | en |
| dc.subject.nsi | VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 | |
| dc.source.pagenumber | 23 | en |
