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Impacts of a bottom trawling exclusion zone on Snow Crab abundance and fish harvester behavior in the Labrador Sea, Canada

Author

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  • Mullowney, Darrell R.J.
  • Morris, Corey J.
  • Dawe, Earl G.
  • Skanes, Katherine R.

Abstract

The Hawke Box trawling exclusion zone off southern Labrador is a 8610km2 closed area implemented in 2003 to protect soft-shelled pre-recruit Snow Crab and juvenile cod from mortality imposed by shrimp trawling and other bottom-impact fisheries. This study utilizes survey, logbook, and observer data from the Snow Crab and Northern Shrimp fisheries to assess the effectiveness of the Hawke Box in protecting and possibly enhancing the Snow Crab resource off southern Labrador. The results indicate that the exclusion zone has failed to protect pre-recruit crabs largely due to a redistribution and intensification of directed Snow Crab effort inside the Box in the years following closure. This unexpected outcome resulted in a high level of fishery-induced mortality to pre-recruit crabs and masked any potential positive outcomes from the cessation of trawling. The shortcomings that contributed to the failure of this exclusion area are discussed in relation to the current state of knowledge on the effectiveness of marine protected areas in general as management tools for conserving aquatic resources.

Suggested Citation

  • Mullowney, Darrell R.J. & Morris, Corey J. & Dawe, Earl G. & Skanes, Katherine R., 2012. "Impacts of a bottom trawling exclusion zone on Snow Crab abundance and fish harvester behavior in the Labrador Sea, Canada," Marine Policy, Elsevier, vol. 36(3), pages 567-575.
    • Handle: RePEc:eee:marpol:v:36:y:2012:i:3:p:567-575
    DOI: 10.1016/j.marpol.2011.10.005
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    Citations

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    Cited by:

    1. Barley Kincaid, Kate & Rose, George & Mahudi, Humphrey, 2014. "Fishers' perception of a multiple-use marine protected area: Why communities and gear users differ at Mafia Island, Tanzania," Marine Policy, Elsevier, vol. 43(C), pages 226-235.
    2. Morris, Corey J. & Green, John M., 2014. "MPA regulations should incorporate adaptive management—The case of Gilbert Bay Labrador Atlantic cod (Gadus morhua)," Marine Policy, Elsevier, vol. 49(C), pages 20-28.
    3. Barley Kincaid, Kate & Rose, George A., 2014. "Why fishers want a closed area in their fishing grounds: Exploring perceptions and attitudes to sustainable fisheries and conservation 10 years post closure in Labrador, Canada," Marine Policy, Elsevier, vol. 46(C), pages 84-90.
    4. Carlo Pipitone & Davide Agnetta & Arturo Zenone & Vincenzo Maximiliano Giacalone & Fabio Badalamenti & Fabio Fiorentino & Paola Rinelli & Mauro Sinopoli & Tomás Vega Fernández & Giovanni D’Anna, 2023. "When the Trawl Ban Is a Good Option: Opportunities to Restore Fish Biomass and Size Structure in a Mediterranean Fisheries Restricted Area," Sustainability, MDPI, vol. 15(3), pages 1-19, January.
    5. Murray, Grant D. & Ings, Danny, 2015. "Adaptation in a time of stress: A social-ecological perspective on changing fishing strategies in the Canadian snow crab fishery," Marine Policy, Elsevier, vol. 60(C), pages 280-286.

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