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Regional warming changes fish species richness in the eastern North Atlantic Ocean
ter Hofstede, R.; Hiddink, J.G.; Rijnsdorp, A.D. (2010). Regional warming changes fish species richness in the eastern North Atlantic Ocean. Mar. Ecol. Prog. Ser. 414: 1-9. http://dx.doi.org/10.3354/meps08753
In: Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe. ISSN 0171-8630; e-ISSN 1616-1599, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoorden
    Catching methods > Net fishing > Trawling > Bottom trawling
    Climate change
    Geography > Biogeography
    Properties > Water properties > Temperature > Water temperature
    Species diversity
    Surveys
    ANE, British Isles, Scotland [Marine Regions]; ANE, Celtic Sea [Marine Regions]
    Marien/Kust
Author keywords
    Climate change; Species richness; Biogeography; International BottomTrawl Surveys; IBTS; North Sea; Celtic Sea; West of Scotland

Auteurs  Top 
  • ter Hofstede, R., meer
  • Hiddink, J.G., meer
  • Rijnsdorp, A.D., meer

Abstract
    Regional warming causes changes in local communities due to species extinctions and latitudinal range shifts. We show that the species richness of fish in 3 regional seas in the eastern North Atlantic Ocean has changed over time (1997 to 2008), and we relate this to higher water temperatures and the biogeographic affinity of the species. In the North and Celtic Seas, species richness increased due to increases in the number of warm-favouring Lusitanian species. In the area west of Scotland, species richness decreased because the number of cold-favouring Boreal species decreased. Additional analyses of trends in fishing effort imply that the observed changes in species richness are unlikely to have been induced by fisheries in the North and Celtic Seas, thereby strengthening the idea that climate change affects species richness of marine fish. However, in the area west of Scotland, a potential effect of fisheries in addition to temperature change on the observed change in species richness could not be ruled out.

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