Government Documents and Reports

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Browsing Government Documents and Reports by Subject "algae"

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    Macrophyte and algal studies of some lakes in the Mackenzie Delta and on the Tuktoyaktuk Peninsula, 1985-86
    (Canada. Dept. of Fisheries and Oceans. Central and Arctic Region, 1991) Ramlal, P.S.; Anema, C.; Cummings, E.; Fee, E.J.; Guildford, S.J.; Hallard, K.; Hecky, R.E.; Hesslein, R.H.; Himmer, S.; Kling, H.; Mathew, D.; Nernberg, D.; Schindler, E.
    This report is a compilation of data collected regarding distribution, abundance and growth of macrophytes, nutrient status indicators of phytoplankton, epiphyton and epipelon, photosynthesis rates of epiphyton and epipelon, and biomass and cell number estimates of phytoplankton from study lakes in the Mackenzie Delta and the Tuktoyaktuk Peninsula during the open water periods of 1985 and 1986.
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    A Species List and Pictorial Reference to the Phytoplankton of Central and Northern Canada - Part lI
    (Department of Fisheries and the Environment, 1979-06) Findlay, D.L.; Kling, H.J.
    This report lists 615 species of phytoplankton which have been found in lakes in central and northern Canada at eleven individual locations. Included for each species is a picture, size ranqe, location where it was found and time of the year.
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    State of Lake Winnipeg: 1999 to 2007
    (Environment Canada and Manitoba Water Stewardship, 2011-06) Environment Canada; Manitoba Water Stewardship
    The quality of Lake Winnipeg waters has deteriorated over time, with particular concern arising over the last few decades in response to the effects of accelerated nutrient enrichment. The frequency and intensity of algal blooms in the lake have increased in association with rising phosphorous and nitrogen loading from diffuse and point sources in the Lake Winnipeg watershed. The Province of Manitoba and the Government of Canada have recognized the need to address nutrient enrichment in Lake Winnipeg and progress has been made under the provincial Lake Winnipeg Action Plan and the federal Lake Winnipeg Basin Initiative to address these issues. While much information has been collected on Lake Winnipeg since 1999, before this report there has been no systematic attempt to summarize these data to form a greater understanding of changes seen more recently in the lake and to establish a baseline for the future. The goal of this report is to present the recent state of knowledge on the Lake Winnipeg aquatic ecosystem as it pertains to eutrophication. This synthesis of research and monitoring on Lake Winnipeg in recent years is a collaborative effort amongst numerous federal and provincial agencies, universities, and independent researchers. The objectives of this report are to describe the temporal and spatial variation in Lake Winnipeg's physical, chemical, and biological characteristics, based on data collected primarily between 1999 to 2007, to explore current and emerging issues of concern to the health and integrity of Lake Winnipeg, and to highlight recent research on the lake. This recent baseline information is intended for use in the future development of performance indicators and nutrient objectives for Lake Winnipeg and its watershed.