Acoustic estimates of spawning cod off Lofoten in 1986
The annual survey on the spawning stock of North-east Arctic cod were carried out in the Lofoten area in March 1986. This survey was undertaken to estimate the size and age structure of the spawning cod on the main spawning grounds. The area used in the estimation this year is the same as in the Lof...
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ftimr:oai:imr.brage.unit.no:11250/104191 2023-05-15T14:30:27+02:00 Acoustic estimates of spawning cod off Lofoten in 1986 Raknes, Askjell Sunnanå, Knut 1986 application/pdf http://hdl.handle.net/11250/104191 eng eng ICES ICES CM Documents;1986/G:79 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/104191 10 s. cod torsk stock assessment bestandsberegning spawning areas gyteplasser VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 Working paper 1986 ftimr 2021-09-23T20:14:22Z The annual survey on the spawning stock of North-east Arctic cod were carried out in the Lofoten area in March 1986. This survey was undertaken to estimate the size and age structure of the spawning cod on the main spawning grounds. The area used in the estimation this year is the same as in the Lofoten survey in 1985, including a larger part of the area north of Lofoten compared to earlier years. However, the extent of covering in time is less this year than in 1985. The estimated number of spawning cod in the same area in 1985 was found to be about 24 million specimens. This is a reduction of 35 percent compared to the result in 1985. No estimate is given for the Møre area this year. This is because that it is clear that the abundance of cod at Møre is very small and not measurable. Report Arctic cod Arctic Lofoten Institute for Marine Research: Brage IMR Arctic Lofoten |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
cod torsk stock assessment bestandsberegning spawning areas gyteplasser VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 |
spellingShingle |
cod torsk stock assessment bestandsberegning spawning areas gyteplasser VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 Raknes, Askjell Sunnanå, Knut Acoustic estimates of spawning cod off Lofoten in 1986 |
topic_facet |
cod torsk stock assessment bestandsberegning spawning areas gyteplasser VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 |
description |
The annual survey on the spawning stock of North-east Arctic cod were carried out in the Lofoten area in March 1986. This survey was undertaken to estimate the size and age structure of the spawning cod on the main spawning grounds. The area used in the estimation this year is the same as in the Lofoten survey in 1985, including a larger part of the area north of Lofoten compared to earlier years. However, the extent of covering in time is less this year than in 1985. The estimated number of spawning cod in the same area in 1985 was found to be about 24 million specimens. This is a reduction of 35 percent compared to the result in 1985. No estimate is given for the Møre area this year. This is because that it is clear that the abundance of cod at Møre is very small and not measurable. |
format |
Report |
author |
Raknes, Askjell Sunnanå, Knut |
author_facet |
Raknes, Askjell Sunnanå, Knut |
author_sort |
Raknes, Askjell |
title |
Acoustic estimates of spawning cod off Lofoten in 1986 |
title_short |
Acoustic estimates of spawning cod off Lofoten in 1986 |
title_full |
Acoustic estimates of spawning cod off Lofoten in 1986 |
title_fullStr |
Acoustic estimates of spawning cod off Lofoten in 1986 |
title_full_unstemmed |
Acoustic estimates of spawning cod off Lofoten in 1986 |
title_sort |
acoustic estimates of spawning cod off lofoten in 1986 |
publisher |
ICES |
publishDate |
1986 |
url |
http://hdl.handle.net/11250/104191 |
geographic |
Arctic Lofoten |
geographic_facet |
Arctic Lofoten |
genre |
Arctic cod Arctic Lofoten |
genre_facet |
Arctic cod Arctic Lofoten |
op_source |
10 s. |
op_relation |
ICES CM Documents;1986/G:79 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/104191 |
_version_ |
1766304299526127616 |