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Competition for the fish - fish extraction from the Baltic Sea by humans, aquatic mammals, and birds
Stockholm University, Faculty of Science, Department of Ecology, Environment and Plant Sciences.
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Number of Authors: 122018 (English)In: ICES Journal of Marine Science, ISSN 1054-3139, E-ISSN 1095-9289, Vol. 75, no 3, p. 999-1008Article in journal (Refereed) Published
Abstract [en]

Seals and fish-eating birds have increased in the Baltic Sea and there is concern that they compete with fisheries. Using data from around year 2010, we compare consumption of different fish species by seals and birds to the catch in the commercial and recreational fishery. When applicable this is done at the geographical resolution of ICES subdivisions. Predation by birds and mammals likely has limited impact on the populations of the commercially most important species (herring, sprat, and cod). In the central and southern Baltic, seals and birds consume about as much flatfish as is caught by the fishery and competition is possible. Birds and seals consume 2-3 times as much coastal fish as is caught in the fishery. Many of these species are important to the fishery (e. g. perch and whitefish) and competition between wildlife and the fishery is likely, at least locally. Estimated wildlife consumption of pike, sea trout and pikeperch varies among ICES subdivisions and the degree of competition for these species may differ among areas. Competition between wildlife and fisheries need to be addressed in basic ecosystem research, management and conservation. This requires improved quantitative data on wildlife diets, abundances and fish production.

Place, publisher, year, edition, pages
2018. Vol. 75, no 3, p. 999-1008
Keywords [en]
Baltic Sea, bird, catch, competition, fisheries, food consumption, seal
National Category
Agricultural Science, Forestry and Fisheries Biological Sciences Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-157789DOI: 10.1093/icesjms/fsx207ISI: 000434070900010OAI: oai:DiVA.org:su-157789DiVA, id: diva2:1235546
Available from: 2018-07-26 Created: 2018-07-26 Last updated: 2018-07-26Bibliographically approved

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Hansson, StureKautsky, Lena
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Department of Ecology, Environment and Plant Sciences
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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