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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.

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.

Suggested Citation

  • Ban, Natalie C. & Alidina, Hussein M. & Ardron, Jeff A., 2010. "Cumulative impact mapping: Advances, relevance and limitations to marine management and conservation, using Canada's Pacific waters as a case study," Marine Policy, Elsevier, vol. 34(5), pages 876-886, September.
  • Handle: RePEc:eee:marpol:v:34:y:2010:i:5:p:876-886
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    Cited by:

    1. Cabral, Reniel B. & Mamauag, Samuel S. & Aliño, Porfirio M., 2015. "Designing a marine protected areas network in a data-limited situation," Marine Policy, Elsevier, vol. 59(C), pages 64-76.
    2. Shucksmith, Rachel J. & Kelly, Christina, 2014. "Data collection and mapping – Principles, processes and application in marine spatial planning," Marine Policy, Elsevier, vol. 50(PA), pages 27-33.
    3. Clarke Murray, Cathryn & Agbayani, Selina & Alidina, Hussein M. & Ban, Natalie C., 2015. "Advancing marine cumulative effects mapping: An update in Canada’s Pacific waters," Marine Policy, Elsevier, vol. 58(C), pages 71-77.
    4. Gadamus, Lily & Raymond-Yakoubian, Julie & Ashenfelter, Roy & Ahmasuk, Austin & Metcalf, Vera & Noongwook, George, 2015. "Building an indigenous evidence-base for tribally-led habitat conservation policies," Marine Policy, Elsevier, vol. 62(C), pages 116-124.
    5. Giakoumi, Sylvaine & Brown, Christopher J. & Katsanevakis, Stelios & Saunders, Megan I. & Possingham, Hugh P., 2015. "Using threat maps for cost-effective prioritization of actions to conserve coastal habitats," Marine Policy, Elsevier, vol. 61(C), pages 95-102.
    6. 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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