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Ecosystems

, Volume 18, Issue 1, pp 45–61 | Cite as

Management Forcing Increased Specialization in a Fishery System

  • J. Hentati-SundbergEmail author
  • J. Hjelm
  • W. J. Boonstra
  • H. Österblom
Article

Abstract

Fisheries systems are shaped by dynamic social-ecological interactions that determine their capacity to provide ecosystem services. Human adaptation is often considered a key uncertainty, and there are few quantitative empirical analyses that address long-term social and ecological change in the analyses of fisheries systems. The aim of this study was twofold: (i) to understand how different drivers influenced the adaptations by fishers, and (ii) to evaluate different consequences of such adaptations, especially with regard to diversity of social and ecological links. We used the Baltic Sea as a case study, a system with different fisheries, largely managed with a single-stock advice, in a top-down basis. The study period 1995–2009 was characterized by profound inter-annual fluctuations in fish stock status and prices, and introduction of new types of management measures. We used multivariate statistical methods to define longitudinal changes in fishing tactics and strategies based on logbook data. Our results indicate that changes in fishing strategies have mainly been driven by regulations, and there were only weak linkages between fishing activities, fish stocks, and price fluctuations. We found contrasting trends between large- and small-scale fishers, where large-scale fishers became more specialized and inflexible, whereas small-scale fishers diversified over time. We conclude that management has had a dominating role in shaping fishing patterns, leading to a reduction of important qualities related to the resilience in this social-ecological system.

Keywords

fisheries management social-ecological systems Baltic Sea resilience diversity redundancy metiers analysis fishing strategies ecosystem markets 

Notes

Acknowledgments

This research was supported by Mistra through a core grant to the Stockholm Resilience Centre at Stockholm University. Support was also provided by the “Baltic Ecosystem Adaptive Management (BEAM)” and “Regime shifts in the Baltic Sea Ecosystem—Modeling complex adaptive ecosystems and governance implications” projects, funded by FORMAS. We are grateful to Katja Ringdahl, Johan Lövgren, and Michele Casini at the Swedish University of Agricultural Sciences, Lysekil, Sweden for help with data preparation. Margit Eero and two anonymous reviewers provided substantial input on an earlier version of the manuscript.

Supplementary material

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Supplementary material 1 (DOCX 23 kb)
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Supplementary material 2 (DOCX 613 kb)
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Supplementary material 3 (DOCX 42 kb)

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • J. Hentati-Sundberg
    • 1
    Email author
  • J. Hjelm
    • 2
  • W. J. Boonstra
    • 1
    • 3
  • H. Österblom
    • 1
  1. 1.Stockholm Resilience CentreStockholm UniversityStockholmSweden
  2. 2.Institute of Marine Research, Department of Aquatic ResourcesSwedish University of Agricultural SciencesLysekilSweden
  3. 3.Nordic Centre for Research on Marine Ecosystems and Resources Under Climate ChangeUniversity of OsloOsloNorway

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