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dc.contributor.authorFossheim, Maria
dc.contributor.authorPrimicerio, Raul
dc.date.accessioned2012-11-08T12:53:53Z
dc.date.available2013-07-29T23:01:04Z
dc.date.issued2008-07-29
dc.identifier.issn0171-8630
dc.identifier.issn1616-1599
dc.identifier.urihttp://hdl.handle.net/11250/109152
dc.description.abstractAccording to habitat choice theory, zooplanktonic prey should choose a depth habitat that maximizes food intake while minimizing predation risk. Body size affects competitive ability and vulnerability in zooplankton, thereby influencing the adaptive choice of depth habitat. To study sizedependent habitat choice in marine zooplankton, we sampled their vertical distributions on a finescale with an optical plankton counter (OPC) during a post-bloom condition in late spring on the continental shelf off North Norway. Taxonomic information was obtained from net samples. We found that small and large zooplankton segregated along the water column under resource heterogeneity, with large zooplankton aggregating in the resource-rich habitat together with predators of small zooplankton, in accordance with multi-trophic level habitat choice theory. These patterns of habitat use differ from summer vertical distributions documented in Norwegian waters, when the distribution of small and large zooplankton is reversed. To account for the discrepancy, we propose a new habitat choice model that considers the different predation regimes experienced in spring vs. summer.no_NO
dc.language.isoengno_NO
dc.publisherInter-Researchno_NO
dc.subjectzooplanktonno_NO
dc.subjectdyreplanktonno_NO
dc.subjectsamplingno_NO
dc.subjectprøvetakingno_NO
dc.subjectselectionno_NO
dc.subjectseleksjonno_NO
dc.subjecthabitatno_NO
dc.titleHabitat choice by marine zooplankton in a high-latitude ecosystemno_NO
dc.typeJournal articleno_NO
dc.typePeer reviewedno_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::Social science: 200::Library and information science: 320::Knowledge retrieval and organization: 323no_NO
dc.source.pagenumber47-56no_NO
dc.source.volume364no_NO
dc.source.journalMarine Ecology Progress Seriesno_NO
dc.identifier.doihttp://dx.doi.org/10.3354/meps07483


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