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Variability of Large Marine Ecosystems in response to global climate change
Sherman, K.; Belkin, I.; O'Reilly, J.; Hyde, K. (2007). Variability of Large Marine Ecosystems in response to global climate change. CM Documents - ICES, 2007(D:20). ICES: Copenhagen. 46 pp.
Part of: ICES CM Documents - ICES. ICES: Copenhagen. ISSN 1015-4744
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    Vlaams Instituut voor de Zee: Open access 226406 [ download pdf ]
Keywords
    Climatic changes
    Marine/Coastal
Authors  Top 
  • Sherman, K.
  • Belkin, I.
  • O'Reilly, J.
  • Hyde, K.
Abstract
    A fifty year time series of sea surface temperature (SST) and time series on fishery yields are examined for emergent patterns relative to climate change. More recent SeaWiFS derived chlorophyll and primary productivity data were also included in the examination. Of the 64 LMEs examined, 61 showed an emergent pattern of SST increases from 1957 to 2006, ranging from mean annual values of 0.08°C to 1.35°C. The rate of surface warming in LMEs from 1957 to 2006 is 4 to 8 times greater than the recent estimate of the Japan Meteorological Society’s COBE estimate for the world oceans. Effects of SST warming on fisheries, climate change, and trophic cascading are examined. Concern is expressed on the possible effects of surface layer warming in relation to thermocline formation and possible inhibition of vertical nutrient mixing within the water column in relation to bottom up effects of chlorophyll and primary productivity on global fisheries resources.
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