Effects of fishing strategy on relative selectivity in trawls, longline and gillnets
Exploitation of fish stocks is dependent on effort, catchability, the selectivity of the gear used, and the fishermen's choice of time and place. A full-scale fishing experiment was conducted in February 1996 at the coast of Finnmark, Norway; involving a trawler, a longliner and a gillnetter. T...
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ftimr:oai:imr.brage.unit.no:11250/105530 2023-05-15T14:30:29+02:00 Effects of fishing strategy on relative selectivity in trawls, longline and gillnets Huse, Irene Løkkeborg, Svein Soldal, Aud Vold 1996 application/pdf http://hdl.handle.net/11250/105530 eng eng ICES ICES CM Documents;1996/B:23 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/105530 22 s. fisheries management fiskeriforvaltning fishing gear fiskeredskaper selection seleksjon catch strategy fangststrategi VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 Working paper 1996 ftimr 2021-09-23T20:16:12Z Exploitation of fish stocks is dependent on effort, catchability, the selectivity of the gear used, and the fishermen's choice of time and place. A full-scale fishing experiment was conducted in February 1996 at the coast of Finnmark, Norway; involving a trawler, a longliner and a gillnetter. The objective was to investigate how the length distributions of the catches were influenced by the gear type and the fishermen's strategy in fishing operations. The target species was North-East Arctic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus). The study analyses relative selectivity of the gears during a week when the boats fished in a predestined area, and during a week when the skippers were allowed to fish as close to commercial operation as possible with regard to choice of fishing grounds and depths. Gillnet catches consisted almost solely of large cod. Trawl and longline fished similar length distributions of cod although the L50 for cod was higher in long line than in trawl. The fishing strategy of the longliner increased the mean length of haddock in the second part of the experiment. Other length and species distributions were almost unaffected. Report Arctic cod Arctic Finnmark Gadus morhua Finnmark Institute for Marine Research: Brage IMR Arctic Norway |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
fisheries management fiskeriforvaltning fishing gear fiskeredskaper selection seleksjon catch strategy fangststrategi VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 |
spellingShingle |
fisheries management fiskeriforvaltning fishing gear fiskeredskaper selection seleksjon catch strategy fangststrategi VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 Huse, Irene Løkkeborg, Svein Soldal, Aud Vold Effects of fishing strategy on relative selectivity in trawls, longline and gillnets |
topic_facet |
fisheries management fiskeriforvaltning fishing gear fiskeredskaper selection seleksjon catch strategy fangststrategi VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 |
description |
Exploitation of fish stocks is dependent on effort, catchability, the selectivity of the gear used, and the fishermen's choice of time and place. A full-scale fishing experiment was conducted in February 1996 at the coast of Finnmark, Norway; involving a trawler, a longliner and a gillnetter. The objective was to investigate how the length distributions of the catches were influenced by the gear type and the fishermen's strategy in fishing operations. The target species was North-East Arctic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus). The study analyses relative selectivity of the gears during a week when the boats fished in a predestined area, and during a week when the skippers were allowed to fish as close to commercial operation as possible with regard to choice of fishing grounds and depths. Gillnet catches consisted almost solely of large cod. Trawl and longline fished similar length distributions of cod although the L50 for cod was higher in long line than in trawl. The fishing strategy of the longliner increased the mean length of haddock in the second part of the experiment. Other length and species distributions were almost unaffected. |
format |
Report |
author |
Huse, Irene Løkkeborg, Svein Soldal, Aud Vold |
author_facet |
Huse, Irene Løkkeborg, Svein Soldal, Aud Vold |
author_sort |
Huse, Irene |
title |
Effects of fishing strategy on relative selectivity in trawls, longline and gillnets |
title_short |
Effects of fishing strategy on relative selectivity in trawls, longline and gillnets |
title_full |
Effects of fishing strategy on relative selectivity in trawls, longline and gillnets |
title_fullStr |
Effects of fishing strategy on relative selectivity in trawls, longline and gillnets |
title_full_unstemmed |
Effects of fishing strategy on relative selectivity in trawls, longline and gillnets |
title_sort |
effects of fishing strategy on relative selectivity in trawls, longline and gillnets |
publisher |
ICES |
publishDate |
1996 |
url |
http://hdl.handle.net/11250/105530 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic cod Arctic Finnmark Gadus morhua Finnmark |
genre_facet |
Arctic cod Arctic Finnmark Gadus morhua Finnmark |
op_source |
22 s. |
op_relation |
ICES CM Documents;1996/B:23 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/105530 |
_version_ |
1766304322760474624 |