00000nam 2200000zi 4500 9.873949 CaOODSP 20221107164048 m o d f cr ||||||||||| 190530e201905##oncbd obs f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- Fs70-6/2019-003E-PDF Science advice on the effectiveness of ballast water exchange plus treatment as a mechanism to reduce the introduction and establishment of aquatic invasive species in Canadian ports. Ottawa, ON : Canadian Science Advisory Secretariat (CSAS), National Capital Region, Fisheries and Oceans Canada, May 2019. ©2019 1 online resource (22 pages) : colour map, colour charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian Science Advisory Secretariat, science advisory report, 1919-5087 ; 2019/003, National Capital Region Issued also in French under title: Avis scientifique sur l’efficacité de l’échange et du traitement de l’eau de ballast comme mécanisme visant à réduire l’introduction et l’établissement d’espèces aquatiques envahissantes dans les ports canadiens. Caption title. Includes bibliographical references (pages 16-19). “Aquatic invasive species are a significant environmental stressor with widespread ecological impacts including biodiversity loss. The movement of ballast water via commercial shipping is a high-risk pathway through which harmful and/or non-indigenous aquatic species are introduced into novel ecosystems. The current management strategy, ballast water exchange, has varied effectiveness across different habitat types, and will be gradually replaced with a ballast water performance standard with the aim to achieve more consistent reduction of invasion risk. The Government of Canada proposed that the combined use of these management strategies may potentially achieve even greater risk reductions in fresh and brackish water environments than either strategy could alone, but additional scientific research is required to inform policy makers and risk managers about whether the exchange plus treatment strategy should be applied in Canada"--Context, page [1]. gccst Invasive species gccst Water transport Canada. Department of Fisheries and Oceans. National Capital Region. Canada. Ecosystems and Oceans Science. Canadian Science Advisory Secretariat. Avis scientifique sur l’efficacité de l’échange et du traitement de l’eau de ballast comme mécanisme visant à réduire l’introduction et l’établissement d’espèces aquatiques envahissantes dans les ports canadiens. (CaOODSP)9.873950 Science advisory report (Canadian Science Advisory Secretariat) 1919-5087 ; 2019/003, National Capital Region (CaOODSP)9.506226 PDF 688 KB https://publications.gc.ca/collections/collection_2019/mpo-dfo/fs70-6/Fs70-6-2019-003-eng.pdf