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dc.contributor.authorHolst, Jens Christian
dc.contributor.authorBlindheim, Johan
dc.contributor.authorCouperus, Bram
dc.contributor.authorHammer, Cornelius
dc.contributor.authorJakupsstovu, Stein Hjalti
dc.contributor.authorMelle, Webjørn
dc.contributor.authorMork, Kjell Arne
dc.contributor.authorStein, Manfred
dc.contributor.authorVilhjálmsson, Hjálmar
dc.contributor.authorGötz, Sabine
dc.contributor.authorKrysov, Alexander
dc.contributor.authorMartin, Bettina
dc.contributor.authorZimmermann, Christopher
dc.date.accessioned2012-10-12T04:22:56Z
dc.date.available2012-10-12T04:22:56Z
dc.date.issued1999
dc.identifier.citationThis report is not to be cited without prior reference to the authorsno_NO
dc.identifier.urihttp://hdl.handle.net/11250/106051
dc.description.abstractIntroduction: The Norwegian spring-spawning herring reoccupied the Norwegian Sea as its main feeding area in the early 1990s, after nearly 25 years of absence. The herring stock is now a typical straddling and highly migratory stock, and its migration mute crosses the borders of several national EEZs (exclusive economic zones) and international waters. From 1994, an international fishery has taken place during summer in the area. The total catch of Norwegian spring spawning herring in the Norwegian Sea and along the Norwegian Coast in 1998 exceeded 1,2 million tonnes. Since 1995, the Faroes, Iceland, Norway, and Russia, and since 1997 also the EU, have coordinated their survey effort on this and other pelagic fish stocks in the Norwegian Sea. The co-ordination of the surveys has strongly enhanced the possibility to assess and describc the distribution of the pelagic resourccs, and their general biology and behaviour in relation to the physical and biological environment (Table 1) Based on an ICES recommendation in 1948, similar surveys were conducted under the auspices of ICES from 1950 to the late 70's. National surveys were continued after this time. At the 1996 Annual Science Conference, the Pelagic Committee recommended that the ICES cooperation should be reintroduced on the planing and conducting of future surveys on herring and the environment in the Norwegian Sea. For the survey efforts to be carried out in 1999, a planing meeting was held in Lysekil in August 1998 (Holst et al., 1998), and a series of 10 surveys to be carricd out by Faeroese, Icelandic, Norwegian, Russian, and EU-research vessels in spring and summer 1999 were coordinated (Table 1). The main objectives of the coordinated surveys were to map the distribution and migration of the herring and other pelagic fish, to assess their biomass, and to monitor environmental conditions of the Norwegian Sea and the quantity of available food in the sea for herring. The 1999 coordinated survey results were evaluated during a meeting in Hamburg in August 1999 (Table 1). The limited time available for the analysis allows only for a brief overview of the main findings of these surveys with respect to herring distribution and migration, environmental conditions (sea temperature, zooplankton biomass), herring abundance, and blue whiting distribution.no_NO
dc.language.isoengno_NO
dc.publisherICESno_NO
dc.relation.ispartofseriesICES CM Documents;1999/D:3
dc.subjectherringno_NO
dc.subjectsildno_NO
dc.subjectpelagic fishno_NO
dc.subjectpelagisk fiskno_NO
dc.subjectstock assessmentno_NO
dc.subjectbestandsberegningno_NO
dc.subjectdistributionno_NO
dc.subjectutbredelseno_NO
dc.subjectfish migrationno_NO
dc.subjectvandringerno_NO
dc.subjectmarine environmentno_NO
dc.subjecthavmiljøno_NO
dc.titleReport on surveys of the distribution, abundance and migrations of the Norwegian spring-spawning herring, other pelagic fish and the environment of the Norwegian Sea and adjacent waters in late winter, spring and summer of 1999no_NO
dc.typeWorking paperno_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921no_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452no_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497no_NO
dc.subject.nsiVDP::Social science: 200::Library and information science: 320::Knowledge retrieval and organization: 323no_NO
dc.source.pagenumber50 s.no_NO


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