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dc.contributor.authorFoote, Kenneth G.
dc.contributor.authorOstrowski, Marek
dc.date.accessioned2012-09-28T06:55:43Z
dc.date.available2012-09-28T06:55:43Z
dc.date.issued1996
dc.identifier.citationThis report is not to be cited without prior reference to the authorsno_NO
dc.identifier.urihttp://hdl.handle.net/11250/105625
dc.description.abstractIn January 1996 the stock of Norwegian spring-spawning herring (Clupea harengus) was acoustically surveyed in the wintering area. Both immature and mature fish were present. Because of the comparative lateness of the survey, the spawning migration had already begun, and the total survey area extended from the inner reaches of Ofotfjord and Tysfjord to the sea area southwest of Vestfjord, well over 200 nautical miles from end to end. Coverage of the Vestfjord area alone occupied three days, thus also including diurnal vertical migration. The evident complex of dynamics is described in two ways: (1) by acoustic images of herring distribution in vertical sections of Vestfjord, and (2) through variograms computed for strata identified by the visual presentation. Speculation is offered on the use of such an analysis in stratification.no_NO
dc.language.isoengno_NO
dc.publisherICESno_NO
dc.relation.ispartofseriesICES CM Documents;1996/H:31
dc.subjectherringno_NO
dc.subjectsildno_NO
dc.subjectacousticsno_NO
dc.subjectakustikkno_NO
dc.subjectdistributionno_NO
dc.subjectutbredelseno_NO
dc.subjectstock assessmentno_NO
dc.subjectbestandsberegningno_NO
dc.titleAcoustic portrait of herring in Vestfjord, january 1996, with geostatistical analysisno_NO
dc.typeWorking paperno_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485no_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452no_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923no_NO
dc.source.pagenumber12 s.no_NO


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