dc.contributor.author | Fossheim, Maria | |
dc.contributor.author | Primicerio, Raul | |
dc.date.accessioned | 2012-11-08T12:53:53Z | |
dc.date.available | 2013-07-29T23:01:04Z | |
dc.date.issued | 2008-07-29 | |
dc.identifier.issn | 0171-8630 | |
dc.identifier.issn | 1616-1599 | |
dc.identifier.uri | http://hdl.handle.net/11250/109152 | |
dc.description.abstract | According 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.iso | eng | no_NO |
dc.publisher | Inter-Research | no_NO |
dc.subject | zooplankton | no_NO |
dc.subject | dyreplankton | no_NO |
dc.subject | sampling | no_NO |
dc.subject | prøvetaking | no_NO |
dc.subject | selection | no_NO |
dc.subject | seleksjon | no_NO |
dc.subject | habitat | no_NO |
dc.title | Habitat choice by marine zooplankton in a high-latitude ecosystem | no_NO |
dc.type | Journal article | no_NO |
dc.type | Peer reviewed | no_NO |
dc.subject.nsi | VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 | no_NO |
dc.subject.nsi | VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 | no_NO |
dc.subject.nsi | VDP::Social science: 200::Library and information science: 320::Knowledge retrieval and organization: 323 | no_NO |
dc.source.pagenumber | 47-56 | no_NO |
dc.source.volume | 364 | no_NO |
dc.source.journal | Marine Ecology Progress Series | no_NO |
dc.identifier.doi | http://dx.doi.org/10.3354/meps07483 | |