00000nam 2200000zi 4500 9.880598 CaOODSP 20241203113652 m o d f cr bn||||||||| 191015s1981 bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc x7x7 En40-240/81-19E-PDF Derksen, George, 1948- author. The impact of sewage disposal on the water quality and standing crop of plankton in Lynx Lake / by G. Derksen. [West Vancouver, B.C.] : Environmental Protection Branch, Environmental Protection Service, Pacific Region, 1981. 1 online resource (v, 31 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Regional program report ; no. 81-19 "December 1981." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 22-23). "Water chemistry and biological indices did not indicate that the domestic sewage effluent entering Lynx Lake through an unnamed creek was having a detectable effect. It is theorized that nutrient regeneration within this type of small lake is a natural occurrence and, as evidenced in Erickson Lake, the control lake, can support algal blooms of 100 µg/1 chlorophyll-a. Although blue-green algae made up a dominant portion of the phytoplankton in both lakes, the overall variety of phytoplankton was greater in Lynx Lake. Zooplankton standing crop was also greater in Lynx Lake and this may be attributed to the more diverse phytoplankton flora. It is felt that due to the naturally high productivity of these lakes and the development of anoxic conditions during the late summer, fish habitation would be restricted to the upper region of the water column"--Abstract, page i. Issued also in print format. Includes abstracts in English and French. gccst Lakes gccst Waste water gccst Water quality Canada. Environment Canada. Canada. Environmental Protection Service. Pacific Region. Regional program report (Canada. Environmental Protection Service. Pacific Region) no. 81-19. (CaOODSP)9.879151 PDF 1.07 MB https://publications.gc.ca/collections/collection_2019/eccc/en40-240/En40-240-81-19-eng.pdf