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

被引:184
作者
Ban, Natalie C. [1 ,2 ]
Alidina, Hussein M. [3 ]
Ardron, Jeff A. [4 ]
机构
[1] James Cook Univ, Australian Res Council Ctr Excellence Coral Reef, Townsville, Qld 4810, Australia
[2] Univ British Columbia, Fisheries Ctr, Project Seahorse, Vancouver, BC V6T 1Z4, Canada
[3] WWF Canada, Vancouver, BC V6T 1Z4, Canada
[4] Pacific Marine Anal & Res Assoc, Victoria, BC V8W 2C5, Canada
关键词
Anthropogenic stressors; Cumulative effects; Ecosystem-based management; Marine protected area; Multiple stressors; Marine spatial planning; ECOSYSTEM; STRESSORS; AREAS; MAP;
D O I
10.1016/j.marpol.2010.01.010
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:876 / 886
页数:11
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