00000nam 2200000zi 4500 9.889920 CaOODSP 20221107172433 m o d f cr |n||||||||| 200724s1988 bccdb ob f|0| 0 eng d CaOODSP eng rda CaOODSP n-cn-bc En40-938/1988E-PDF Harding, L., author. Levels of organotin in water, sediments and oysters (Crassostrea gigas) from Nanoose Bay, B.C. / by L. Harding, B. Kay. West Vancouver : Environment Canada, Conservation and Protection, Environmental Protection, Pacific and Yukon Region, 1988. 1 online resource (ii, 9 pages) : charts, maps text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Environment and Climate Change Canada]. "April 1988." Includes bibliographical references (pages 8-9). "Following observations of growth abnormalities in oysters, Crassostrea gigas, from Nanoose Bay, samples of sediments, water and oyster tissue were analysed for organotins. Highest concentrations of tributyltin (TBT) in both sediments and water were measured at a salmon farm, and highest concentrations of TBT in oysters were measured at an oyster farm adjacent to the salmon farm. In March, 1987, Environment Canada and Agriculture Canada advised the aquaculture industry that TBT is not permitted for use as a marine growth retardant on net pens and the products are no longer available in retail outlets"--Abstract. Pacific oyster Abnormalities British Columbia. Tributyltin Environmental aspects British Columbia. Huître japonaise Malformations Colombie-Britannique. Tributylétain Aspect de l'environnement Colombie-Britannique. Canada. Environment Canada. Conservation and Protection, issuing body. PDF 3.98 MB https://publications.gc.ca/collections/collection_2020/eccc/en40/En40-938-1988-eng.pdf