Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches
In July/ August 1991 the Institute of Marine Research (IMR, Norway) performed a pairtrawling (two boat trawl) experiment with a surface trawl to catch young herring in the northem Norwegian Sea. 34 postsmolts and two 1- sea-winter salmon were caught as bycatch. This was the first time that postsmolt...
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ftimr:oai:imr.brage.unit.no:11250/105611 2023-05-15T15:31:13+02:00 Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches Holst, Jens Christian Holm, Marianne Hansen, Lars Petter 1996 application/pdf http://hdl.handle.net/11250/105611 eng eng ICES ICES CM Documents;1996/M:12 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/105611 12 s. atlantisk laks atlantic salmon sampling prøvetaking trawl trål catch strategy fangststrategi 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::Fish health: 923 Working paper 1996 ftimr 2021-09-23T20:15:25Z In July/ August 1991 the Institute of Marine Research (IMR, Norway) performed a pairtrawling (two boat trawl) experiment with a surface trawl to catch young herring in the northem Norwegian Sea. 34 postsmolts and two 1- sea-winter salmon were caught as bycatch. This was the first time that postsmolts were recorded in larger numbers during fishery in open sea in the North East Atlantic, although the area is believed to be the one of the main feeding areas for salmon during summer. A (one boat) pelagic research trawl has been developed by IMR for scientific surveys of the pelagic fish stocks. This trawl, an Åkra trawl, can be rigged both for mid water and surface trawling (0- ~ 25 m), and is currently in use on all pelagic research cruises. In 1993 a study was made to test whether the new trawl would catch salmon. This study proved successful, and consequently, Atlantic salmon was included in a large scale ecology study in the Norwegian Sea, the so called "Mare Cognitum Programme" (MCP). In 1995, the first year of salmon surveys in the MCP framework, in addition to the trawl surveys, otter- board salmon trolling and salmon drift line fishery with an experimental line with 200 hooks were developed and tested from the R/V "Johan Hjort". A total of 157 postsmolts and nine 1-sea-winter salmon have been caught in surface hauls since 1991. The fish have been caught in an area stretching from west of Scotland and the Hebrides up to 75°N and 18°E. The samplings have been performed from June to mid August. Report Atlantic salmon North East Atlantic Norwegian Sea Institute for Marine Research: Brage IMR Norway Norwegian Sea |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
atlantisk laks atlantic salmon sampling prøvetaking trawl trål catch strategy fangststrategi 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::Fish health: 923 |
spellingShingle |
atlantisk laks atlantic salmon sampling prøvetaking trawl trål catch strategy fangststrategi 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::Fish health: 923 Holst, Jens Christian Holm, Marianne Hansen, Lars Petter Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches |
topic_facet |
atlantisk laks atlantic salmon sampling prøvetaking trawl trål catch strategy fangststrategi 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::Fish health: 923 |
description |
In July/ August 1991 the Institute of Marine Research (IMR, Norway) performed a pairtrawling (two boat trawl) experiment with a surface trawl to catch young herring in the northem Norwegian Sea. 34 postsmolts and two 1- sea-winter salmon were caught as bycatch. This was the first time that postsmolts were recorded in larger numbers during fishery in open sea in the North East Atlantic, although the area is believed to be the one of the main feeding areas for salmon during summer. A (one boat) pelagic research trawl has been developed by IMR for scientific surveys of the pelagic fish stocks. This trawl, an Åkra trawl, can be rigged both for mid water and surface trawling (0- ~ 25 m), and is currently in use on all pelagic research cruises. In 1993 a study was made to test whether the new trawl would catch salmon. This study proved successful, and consequently, Atlantic salmon was included in a large scale ecology study in the Norwegian Sea, the so called "Mare Cognitum Programme" (MCP). In 1995, the first year of salmon surveys in the MCP framework, in addition to the trawl surveys, otter- board salmon trolling and salmon drift line fishery with an experimental line with 200 hooks were developed and tested from the R/V "Johan Hjort". A total of 157 postsmolts and nine 1-sea-winter salmon have been caught in surface hauls since 1991. The fish have been caught in an area stretching from west of Scotland and the Hebrides up to 75°N and 18°E. The samplings have been performed from June to mid August. |
format |
Report |
author |
Holst, Jens Christian Holm, Marianne Hansen, Lars Petter |
author_facet |
Holst, Jens Christian Holm, Marianne Hansen, Lars Petter |
author_sort |
Holst, Jens Christian |
title |
Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches |
title_short |
Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches |
title_full |
Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches |
title_fullStr |
Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches |
title_full_unstemmed |
Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches |
title_sort |
sampling atlantic salmon in the ne atlantic during summer: methods of capture and distribution of catches |
publisher |
ICES |
publishDate |
1996 |
url |
http://hdl.handle.net/11250/105611 |
geographic |
Norway Norwegian Sea |
geographic_facet |
Norway Norwegian Sea |
genre |
Atlantic salmon North East Atlantic Norwegian Sea |
genre_facet |
Atlantic salmon North East Atlantic Norwegian Sea |
op_source |
12 s. |
op_relation |
ICES CM Documents;1996/M:12 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/105611 |
_version_ |
1766361712981704704 |