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Recent warming leads to a rapid borealization of fish communities in the Arctic

Nature climate change, 2015-07, Vol.5 (7), p.673-677 [Peer Reviewed Journal]

Copyright Nature Publishing Group Jul 2015 ;ISSN: 1758-678X ;EISSN: 1758-6798 ;DOI: 10.1038/nclimate2647

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  • Title:
    Recent warming leads to a rapid borealization of fish communities in the Arctic
  • Author: Fossheim, Maria ; Primicerio, Raul ; Johannesen, Edda ; Ingvaldsen, Randi B ; Aschan, Michaela M ; Dolgov, Andrey V
  • Is Part Of: Nature climate change, 2015-07, Vol.5 (7), p.673-677
  • Description: Arctic marine ecosystems are warming twice as fast as the global average. As a consequence of warming, many incoming species experience increasing abundances and expanding distribution ranges in the Arctic. The Arctic is expected to have the largest species turnover with regard to invading and locally extinct species, with a modelled invasion intensity of five times the global average. Studies in this region might therefore give valuable insights into community-wide shifts of species driven by climate warming. We found that the recent warming in the Barents Sea has led to a change in spatial distribution of fish communities, with boreal communities expanding northwards at a pace reflecting the local climate velocities. Increased abundance and distribution areas of large, migratory fish predators explain the observed community-wide distributional shifts. These shifts change the ecological interactions experienced by Arctic fish species. The Arctic shelf fish community retracted northwards to deeper areas bordering the deep polar basin. Depth might limit further retraction of some of the fish species in the Arctic shelf community. We conclude that climate warming is inducing structural change over large spatial scales at high latitudes, leading to a borealization of fish communities in the Arctic.
  • Publisher: London: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 1758-678X
    EISSN: 1758-6798
    DOI: 10.1038/nclimate2647
  • Source: ProQuest Central
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