dc.contributor.author | Randa, Kjell | |
dc.date.accessioned | 2008-07-21T11:09:40Z | |
dc.date.issued | 1984 | |
dc.identifier.uri | http://hdl.handle.net/11250/107623 | |
dc.description | The proceedings of the Soviet-Norwegian symposium on: Reproduction and recruitment of Arctic cod. Leningrad 26 - 30 September 1983. | en |
dc.description.abstract | The trawl data from the International 0-group fish surveys in the Baretns Sea are reanalysed for cod and haddock. Relative indices of yearclass abundance are estimated on a logarithmic scale. The most abundant yearclasses at the 0-group stage, for cod, are the 1970, 1973 and 1975 yearclasses and the 1970, 1974 and 1975 yearclasses for haddock. The estimated indices of yearclass strength give a correlation of 0.92 for cod and 0.89 for haddock with VPA (Virtual Population Analysis) estimates for the corresponding yearclasses at age 3 for yearclasses 1970-1976. 0-group haddock show a more western distribution than cod which may be related to a more western spawning area for haddock. Both cod and haddock show similar trends in changes in the east-west distribution over time. This is probably related to hydrographical factors such as changes in the relative strenght of the different currents in the area. A good correlation is found for both cod and haddock between the part of a yearclass found in the Barents Sea and the temperature anomalies in the Kola Meridian hydrographical section, but no correlation was found between the part of a yearclass in the Spitsbergen/Bear Island area and temperature anomalies in the Bear Island West hydrographical section. | en |
dc.format.extent | 817108 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | en |
dc.relation.ispartofseries | PINRO-IMR Symposium | en |
dc.relation.ispartofseries | 1 | en |
dc.title | Abundance and distribution of 0-group Arcto-Norwegian cod and haddock 1965 - 1982 | en |
dc.type | Conference object | en |
dc.subject.nsi | VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 | en |
dc.source.pagenumber | p. 189-209 | |