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Author (up) Berge, J.; Cottier, F.; Last, K.S.; Varpe, O.; Leu, E.; Soreide, J.; Eiane, K.; Falk-Petersen, S.; Willis, K.; Nygard, H.; Vogedes, D.; Griffiths, C.; Johnsen, G.; Lorentzen, D.; Brierley, A.S. url  doi
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  Title Diel vertical migration of Arctic zooplankton during the polar night Type Journal Article
  Year 2008 Publication Biology Letters Abbreviated Journal Biol Lett  
  Volume Issue Pages  
  Keywords  
  Abstract High-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.  
  Address University Centre in Svalbard, Pb 156, 9171 Longyearbyen, Norway The Scottish Association for Marine Science, Dunstaffnage Marine Laboratories, Oban, Argyll PA37 1QA, UK  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1744-9561 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:18948249 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4629  
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