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Cumulative impact mapping: Advances, relevance and limitations to marine management and conservation, using Canada's Pacific waters as a case study

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  • Ban, Natalie C.
  • Alidina, Hussein M.
  • Ardron, Jeff A.
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    Abstract

    Analysis of cumulative human impacts in the marine environment is still in its infancy but developing rapidly. In this study, existing approaches were expanded upon, aiming for a realistic consideration of cumulative impacts at a regional scale. Thirty-eight human activities were considered, with each broken down according to stressor types and a range of spatial influences. To add to the policy relevance, existing stressors within and outside of conservation areas were compared. Results indicate the entire continental shelf of Canada's Pacific marine waters is affected by multiple human activities at some level. Commercial fishing, land-based activities and marine transportation accounted for 57.0%, 19.1%, and 17.7% of total cumulative impacts, respectively. Surprisingly, most areas with conservation designations contained higher impact scores than the mean values of their corresponding ecoregions. Despite recent advances in mapping cumulative impacts, many limitations remain. Nonetheless, preliminary analyses such as these can provide information relevant to precautionary management and conservation efforts.

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    File URL: http://www.sciencedirect.com/science/article/B6VCD-4YB6840-1/2/415c81274fb48b60989b405abc868e00
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    Bibliographic Info

    Article provided by Elsevier in its journal Marine Policy.

    Volume (Year): 34 (2010)
    Issue (Month): 5 (September)
    Pages: 876-886

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    Handle: RePEc:eee:marpol:v:34:y:2010:i:5:p:876-886

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    Web page: http://www.elsevier.com/locate/marpol

    Related research

    Keywords: Anthropogenic stressors Cumulative effects Ecosystem-based management Marine protected area Multiple stressors Marine spatial planning;

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    Cited by:
    1. Kerr, Sandy & Watts, Laura & Colton, John & Conway, Flaxen & Hull, Angela & Johnson, Kate & Jude, Simon & Kannen, Andreas & MacDougall, Shelley & McLachlan, Carly & Potts, Tavis & Vergunst, Jo, 2014. "Establishing an agenda for social studies research in marine renewable energy," Energy Policy, Elsevier, vol. 67(C), pages 694-702.

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