00000nam 2200000zi 4500 9.868692 CaOODSP 20241203113646 m o d f cr ||||||||||| 190221s2003 onc #ot f|0| 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/03-522E-PDF Walker, S. L., author. Scoping science assessment of the impacts of freshwater aquaculture on the Canadian environment / S. L. Walker [and seven others]. Burlington, Ontario : National Water Research Institute, Environment Canada, October 2003. 1 online resource (87 pages) text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 03-522 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographic references. "Environmental impacts of aquaculture vary from minimal to severe impairment depending upon the site characteristics, the type, size and practices of the operation, and the nature of the wastes in the aquaculture effluent. The most common impact of aquaculture is nutrient enrichment potentially resulting in eutrophication. Other potential changes include deterioration of water quality, changes in physical and chemical characteristics of the sediment, shifts in algal and invertebrate communities, increase of birds around net cages, and increased interactions, disease transmission, and competition between farmed and wild fish. A review of the existing environmental monitoring programs indicates a lack of consistency across Canada"--Abstract. Includes abstract in French. gccst Aquatic ecosystems gccst Water quality Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; 03-522. (CaOODSP)9.844121 PDF 6.59 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-03-522-eng.pdf