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dc.contributor.authorSkaret, Georg
dc.contributor.authorJohannesen, Edda
dc.contributor.authorFall, Johanna Jennifer Elisabeth
dc.contributor.authorFiksen, Øyvind
dc.date.accessioned2018-01-11T14:48:41Z
dc.date.available2018-01-11T14:48:41Z
dc.date.created2017-09-13T12:37:05Z
dc.date.issued2016
dc.identifier.issn1893-4536
dc.identifier.urihttp://hdl.handle.net/11250/2477070
dc.description.abstractThe survey is part of the project “The cod – capelin interaction in the Barents Sea: spatial dynamics in predator prey overlap and functional response (CODFUN)” funded by the Norwegian Research Council (NRC project number 243676/E40). The CODFUN project was motivated by the need to update and improve the current formulation of the functional response of cod used in the capelin assessment model. The functional response is the relationship between the feeding rate of individual predators and density of prey. Functional response, together with density of predators and prey is used to calculate natural mortality. In all natural environments, there is spatial heterogeneity in densities of prey and predators and their overlap. This heterogeneity becomes a very important determinant of natural mortality due to predation. The aim of the CODFUN project is to quantify and explain spatial heterogeneity in the capelin-cod interaction at different spatial scales in the Barents Sea. The aim of the survey was to study spatial variation at the scale of individual cod and capelin schools. We aimed at quantifying attack rates of cod on capelin using acoustics, and to estimate proportion of successful attacks using stomach samples from trawl catches and handline. Furthermore, we aimed to relate variation in attack rates to variation in capelin densities and light conditionsnb_NO
dc.language.isoengnb_NO
dc.publisherHavforskningsinstituttetnb_NO
dc.relation.ispartofRapport fra havforskningen
dc.relation.ispartofseriesRapport fra havforskningen;Nr. 41 - 2016
dc.titleSurvey report from the CODFUN 2016114 Barents Sea survey 5.-11. oktober 2016nb_NO
dc.typeResearch reportnb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber17nb_NO
dc.source.issue41-2016nb_NO
dc.identifier.cristin1493314
dc.relation.projectNorges forskningsråd: 243676nb_NO
cristin.unitcode7431,21,0,0
cristin.unitcode7431,26,0,0
cristin.unitnamePelagisk fisk
cristin.unitnameØkosystemprosesser
cristin.ispublishedtrue
cristin.fulltextoriginal


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