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dc.contributor.authorBerge, Jørgen
dc.contributor.authorCottier, Finlo
dc.contributor.authorLast, Kim S.
dc.contributor.authorVarpe, Øystein
dc.contributor.authorLeu, Eva
dc.contributor.authorSøreide, Janne
dc.contributor.authorEiane, Ketil
dc.contributor.authorFalk-Petersen, Stig
dc.contributor.authorWillis, Kate
dc.contributor.authorNygård, Henrik
dc.contributor.authorVogedes, Daniel
dc.contributor.authorGriffiths, Collin
dc.contributor.authorJohnsen, Geir
dc.contributor.authorLorentzen, Dag Arne
dc.contributor.authorBrierley, Andrew S.
dc.identifier.citationBerge, J., Cottier, F., Last, K.S., Varpe, Ø., Leu, E., Søreide, J. & Brierley, A.S. (2009). Diel vertical migration of Arctic zooplankton during the polar night. Biology Letters, 5(1), 69-72. doi:nb_NO
dc.description.abstractHigh-latitude environments show extreme seasonal variation in physical and biological variables. The classic paradigm of Arctic marine ecosystems holds that most biological processes slow down or cease during the polar night. One key process that is generally assumed to cease during winter is diel vertical migration (DVM) of zooplankton. DVM constitutes the largest synchronized movement of biomass on the planet, and is of paramount importance for marine ecosystem function and carbon cycling. Here we present acoustic data that demonstrate a synchronized DVM behaviour of zooplankton that continues throughout the Arctic winter, in both open and ice-covered waters. We argue that even during the polar night, DVM is regulated by diel variations in solar and lunar illumination, which are at intensities far below the threshold of human perception. We also demonstrate that winter DVM is stronger in open waters compared with ice-covered waters. This suggests that the biologically mediated vertical flux of carbon will increase if there is a continued retreat of the Arctic winter sea ice cover.nb_NO
dc.publisherThe Royal Societynb_NO
dc.rightsNavngivelse 3.0 Norge*
dc.titleDiel vertical migration of Arctic zooplankton during the polar nightnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.rights.holder© 2008, The Royal Society
dc.subject.nsiVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497nb_NO
dc.source.journalBiology Lettersnb_NO
dc.description.localcodePaid Open Accessnb_NO

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