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dc.contributor.authorNedreaas, Kjell Harald
dc.contributor.authorSandberg, Per
dc.contributor.authorVeim, Anne Kjos
dc.date.accessioned2012-09-21T05:50:19Z
dc.date.available2012-09-21T05:50:19Z
dc.date.issued1995
dc.identifier.citationThis report is not to be cited without prior reference to the authorsno_NO
dc.identifier.urihttp://hdl.handle.net/11250/105489
dc.description.abstractThis paper focuses on the level and distribution of fishing mortality in a multigear fishery, and its effect on biological and economic parameters. The Greenland halibut stock in ICES Sub-areas I and Il is at a historically low level. Due to a lack of recruitment observed for this stock, and in order to have an increase in the spawning stock, a cessation of fishing has been advised. Since 1992 trawlers, and gillnet vessels and longliners larger than 90 feet have not been allowed to fish Greenland halibut as target species, but only as bycatch when fishing for other species. Gillnet vessels and longliners smaller than 90 feet have been allowed to participate in a directed fishery for Greenland halibut within a limited quota, a limited area and a limited period each year. This paper focuses on the economic yield one can expect from the Greenland halibut stock in ICES Sub-areas I and Il when gear specific selective properties are taken into consideration. The biological data were collected during a 1992- 1994 research programme using trawlers, longliners and gillnet vessels in a limited commercial fishery in the same geographical area, i.e., the historical most important fishing area. Quantitative effects of the three gears' different selectivity have been judged out from yield and spawning biomass per recruit (age 3). The profitability analysis of the different gears is based on prices and value of the catch and cost analysis of the fishery the last year of no catch-regulation (1991). Finally, the biological and economic analysis have been combined and evaluated together. The results may be used as guidelines for the management of the stock.no_NO
dc.language.isoengno_NO
dc.publisherICESno_NO
dc.relation.ispartofseriesICES CM Documents;1995/S:5
dc.subjectgreenland halibutno_NO
dc.subjectblåkveiteno_NO
dc.subjectresponsible fisheriesno_NO
dc.subjectansvarlig fiskeno_NO
dc.subjectgear experimentsno_NO
dc.subjectredskapsforsøkno_NO
dc.titleBiological and economic implications of a multi-gear fishery for greenland halibut (Reinhardtius hippoglossoides)no_NO
dc.typeWorking paperno_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925no_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923no_NO
dc.source.pagenumber26 s.no_NO


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