00000nam 2200000zi 4500 9.880259 CaOODSP 20241203113652 m o d f cr ||||||||||| 191007e197501##bccd ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-bc En42-1/5-75-1E-PDF Wilson, D. M., author. Effects of some aquatic weed control chemicals on invertebrates and plankton in Vernon Arm of Okanagan Lake / by D. M. Wilson and M. T. K. Wan. Vancouver, B.C. : Environmental Protection Service, Pacific Region, January, 1975. 1 online resource (iii, 30 pages) : charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier Report ; EPS 5-PR-75-1 Digitized edition from print [produced by Environment and Climate Change Canada]. "Environmental Protection Service report series." "Surveillance report"--Cover. Includes bibliographical references (pages 19-21). "Application of bi-pyridylium and nitrile herbicides to 10 x 15 meter enclosures in Vernon Arm of Okanagan Lake did not adversely affect either community diversity or total numbers of aquatic invertebrates. Numbers of invertebrates in the treated plots remained constant while numbers in the control plot increased during the 49 day sampling period"--Abstract. Includes abstract in French. gccst Water quality gccst Herbicides gccst Aquatic wildlife Wan, M. T. K.‏, author. Canada. Environment Canada. Canada. Environmental Protection Service. Pacific Region. Environmental Protection Service report series ; EPS-5-PR-75-1. (CaOODSP)9.866031 PDF 1.09 MB https://publications.gc.ca/collections/collection_2019/eccc/en42-1/En42-1-5-75-1-eng.pdf