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dc.contributor.authorLast, Kim
dc.contributor.authorHobbs, Laura
dc.contributor.authorBerge, Jørgen
dc.contributor.authorBrierley, Andrew S
dc.contributor.authorCottier, Finlo Robert
dc.date.accessioned2017-03-11T09:39:35Z
dc.date.available2017-03-11T09:39:35Z
dc.date.issued2016-01-07
dc.description.abstractIn extreme high-latitude marine environments that are without solar illumination in winter, light-mediated patterns of biological migration have historically been considered non-existent [1]. However, diel vertical migration (DVM) of zooplankton has been shown to occur even during the darkest part of the polar night, when illumination levels are exceptionally low [2, 3]. This paradox is, as yet, unexplained. Here, we present evidence of an unexpected uniform behavior across the entire Arctic, in fjord, shelf, slope and open sea, where vertical migrations of zooplankton are driven by lunar illumination. A shift from solar-day (24-hr period) to lunar-day (24.8-hr period) vertical migration takes place in winter when the moon rises above the horizon. Further, mass sinking of zooplankton from the surface waters and accumulation at a depth of 50 m occurs every 29.5 days in winter, coincident with the periods of full moon. Moonlight may enable predation of zooplankton by carnivorous zooplankters, fish, and birds now known to feed during the polar night [4]. Although primary production is almost nil at this time, lunar vertical migration (LVM) may facilitate monthly pulses of carbon remineralization, as they occur continuously in illuminated mesopelagic systems [5], due to community respiration of carnivorous and detritivorous zooplankton. The extent of LVM during the winter suggests that the behavior is highly conserved and adaptive and therefore needs to be considered as ‘‘baseline’’ zooplankton activity in a changing Arctic ocean [6–9].en_US
dc.descriptionPublished version. Source at <a href=http://dx.doi.org/10.1016/j.cub.2015.11.038> http://dx.doi.org/10.1016/j.cub.2015.11.038 </a>en_US
dc.identifier.citationLast K. et.al.: Moonlight Drives Ocean-Scale Mass Vertical Migration of Zooplankton during the Arctic Winter. Current Biology. 2016;26(2):244-251en_US
dc.identifier.cristinIDFRIDAID 1328203
dc.identifier.doi10.1016/j.cub.2015.11.038
dc.identifier.issn0960-9822
dc.identifier.issn1879-0445
dc.identifier.urihttps://hdl.handle.net/10037/10571
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalCurrent Biology
dc.relation.projectIDinfo:eu-repo/grantAgreement/NRC/POLARPROG/226417/Jurisdiction/MareIncognitumEcologicalProcessesDuringThePolarNight//en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/NRC/FRIMEDBIO/214271/Jurisdiction/CircadianRhythmsOfArcticZooplanktonFromPolarTwilightToPolarNight/CircA/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/NRC/POLARPROG/244319/Jurisdiction/ArcticOceanEcosystems//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497en_US
dc.titleMoonlight Drives Ocean-Scale Mass Vertical Migration of Zooplankton during the Arctic Winteren_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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