Where else? Assessing zones of alternate ballast water exchange in the Canadian eastern Arctic

MARINE POLLUTION BULLETIN

卷:139

Article

Goldsmit, Jesica¹  Nudds, Shannon Hope²  Stewart, D. Bruce³  Higdon, Jeff Wayde⁴  Hannah, Charles Gordon⁵  Howland, Kimberly Lynn⁶ 

[1] Fisheries & Oceans Canada, Maurice Lamontagne Inst, 850 Route Mer, St Flavie, PQ G0J 2L0, Canada

[2] Fisheries & Oceans Canada, Bedford Inst Oceanog, 1 Challenger Dr, Dartmouth, NS B2Y 4A2, Canada

[3] Arctic Biol Consultants, 95 Turnbull Dr, Winnipeg, MB R3V 1X2, Canada

[4] Higdon Wildlife Consulting, 912 Ashburn Str, Winnipeg, MB R3G 3C9, Canada

[5] Fisheries & Oceans Canada, Inst Ocean Sci, 9860 W Saanich Rd, Sidney, BC V8L 5T5, Canada

[6] Fisheries & Oceans Canada, Freshwater Inst, 501 Univ Crescent, Winnipeg, MB R3T 2N6, Canada

关键词: Nonindigenous species;    Ecological assessment;    Impact;    Risk of introduction;    Ballast water exchange;    Shipping;   

DOI  :  10.1016/j.marpolbul.2018.11.062

来源: Elsevier

【 摘 要 】

Mid-ocean ballast water exchange (BWE) is recommended for international vessels to minimize the transfer of nonindigenous species (NIS). When this cannot be accomplished due to safety concerns, alternate ballast water exchange zones (ABWEZ) may be used. A coupled-ice-ocean model with meteorological forcing and particle tracking was used to evaluate the relative risks from BWE along primary shipping routes into Canada's eastern Arctic. Relative risk to receiving habitats from BWE was calculated from the product of likelihood of exposure, likelihood of establishment, and habitat sensitivity to potential NIS. Modelling results indicate that existing ABWEZs in and around Lancaster Sound and Hudson Strait are among the areas of highest relative risk for introductions of NIS via ballast water. The deeper offshore regions of Labrador Sea and Baffin Bay should be considered as alternatives. However, further research is recommended to assess the risks of NIS associated with BWE in the Canadian Arctic.

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