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Baltic cod fisheries – current status and future opportunities
RISE - Research Institutes of Sweden, Bioscience and Materials, Agrifood and Bioscience.ORCID iD: 0000-0003-0814-5258
Stockholm University, Sweden; University of Gothenburg, Sweden.
2019 (English)Report (Other academic)
Abstract [en]

This study quantifies a set of sustainability indicators (environmental, economic, social and institutional) for the Baltic cod fisheries (western and eastern stock) and explores the effects of different alternative management options in short term (for both stocks) and longer term (for the eastern stock). Data collected are biased towards the Swedish fishing industry, but most findings are relevant for all countries exploiting the stocks.

Based on results in this study, it is evident that management actions are needed at many levels to improve the current situation. Some of the observed problems with the cod fisheries today are due to external influences, outside of fisheries management remit (such as seal conflicts, oxygen-depleted areas). Nevertheless, this should not hinder management actions on what may be better understood and managed for in a fisheries context. For the eastern stock, the most pertinent issue is mitigation of density-dependence or feeding shortages. It is urgent with further investigations on what is the most important driver such as consider risks with current selectivity and effort regime, as well as act to improve herring and sprat availability where cod is abundant. Interestingly, it is found that increased seal predation may have a mitigating effect on density-dependence of cod in a trawl-based selectivity regime (i.e. result in higher landings and improved stock structure compared to lower predation pressure); for passive gears, it is the opposite. For the western stock, decreasing fishing effort and allowing the stock to rebuild is the most urgent action.

To this end, the present governance system may improve in many ways, and it is recommended to do a thorough analysis of what may be done to improve effectiveness of accomplishing current aspirational policy objectives.

Place, publisher, year, edition, pages
2019. , p. 32
Series
RISE Rapport ; 2019:29
Keywords [en]
Baltic Sea, cod, selectivity, density-dependence, ecosystem-based fisheries management
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-38343OAI: oai:DiVA.org:ri-38343DiVA, id: diva2:1307653
Available from: 2019-04-29 Created: 2019-04-29 Last updated: 2019-04-29Bibliographically approved

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CiteExportLink to record
Permanent link

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