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MSY oriented management of the Baltic Sea herring under regime shifts
University of Skövde, School of Life Sciences. University of Skövde, The Systems Biology Research Centre.
University of Skövde, School of Life Sciences. University of Skövde, The Systems Biology Research Centre.ORCID iD: 0000-0002-2055-4284
University of Tartu, Estonian Marine Institute, Tallin, Estonia.
Fisheries and Environmental Management Group, University of Helsinki, Finland.
2011 (English)In: ICES report of the Baltic Fisheries Assessment working Group (WGBFAS), Copenhagen: ICES , 2011, 752-798 p.Chapter in book (Other academic)
Abstract [en]

The ecosystem of the baltic sea has undergone dramatic changes, perhaps a regime-shift, during the last four decades. The Baltic Sea Herring SSB has declined to a third and weight-at-age has halved due to plankton prey deficits. The management objective of the herring is currently in the transition to a cautionary maximum sustainable yield (MSY). We modelled the main basin Baltic Sea herring under the currernt regime, and analysed the effect of a ercovery of the cod stock and the food availability as they were in the early 1980s. We recommend a target F MSY of 0.16, but with a recovery of the cod, recommended target F MSY is is 0.10. A simultaneous increase in both cod and food availability is estimated to increase the yield with 40% at the target F MSY is 0.20. We present functions to calculate F MSY and estimate the expected yield depending on the abundance of cod and food-availability. A retrospective application of our functions indicates over-fishing in the 1990s  and early 2000s, and a net loss in yields with a landing value of about E440 Millions.

Place, publisher, year, edition, pages
Copenhagen: ICES , 2011. 752-798 p.
Keyword [en]
density-dependence, fishing mortality, productivity, sustainability, weight at age, yield
National Category
Natural Sciences
Research subject
Natural sciences
Identifiers
URN: urn:nbn:se:his:diva-5742OAI: oai:DiVA.org:his-5742DiVA: diva2:517605
Note

WD 6

Available from: 2012-04-24 Created: 2012-04-24 Last updated: 2015-09-02Bibliographically approved

Open Access in DiVA

No full text

Other links

http://www.ices.dk/sites/pub/Publication%20Reports/Expert%20Group%20Report/acom/2011/WGBFAS/Annex%2016%20Working%20Documents.pdf

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Holmgren, Noél M. A.Norrström, Niclas
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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