Importance of deep mixing for initiating the North Atlantic spring bloom

Karen Riisgaard, Maria Lund Paulsen, T. Frede Thingstad, Torkel Gissel Nielsen

Research output: Contribution to conferenceConference abstract for conferenceResearch


The phytoplankton spring bloom is one of the most important recurrent events in the sup-polar part of the Atlantic Ocean. The classical idea is that the bloom is controlled by nutrients and light, but recent observations challenge this hypothesis. During repeated visits to stations in the deep Icelandic and the Norwegian Basins and the shallow Shetland Shelf (26 March to 1 May 2012), we investigated the succession and growth dynamics of microscopic grazers prior to the bloom. We demonstrate that deep mixing of the water column play an important role for predator-prey interactions and that a released grazing pressure could initiate the bloom
Original languageEnglish
Publication date2014
Publication statusPublished - 2014
EventESSAS Annual Science Meeting 2014 - University of Copenhagen, Copenhagen, Denmark
Duration: 7 Apr 20149 Apr 2014


ConferenceESSAS Annual Science Meeting 2014
LocationUniversity of Copenhagen


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