WInter Image
About the Lake About the Science Education & Outreach About Namao Events and News Membership Publications What you can Do Links Contact Us
About the science
 
 
 

Scientific evidence accumulated over the last 70 years now reveals that Lake Winnipeg is approaching a state of deterioration that may affect ecosystem sustainability.
Significant changes in water transparency, biological species composition, productivity, and sediment chemistry indicate that the lake is on a trajectory of progressive eutrophication not unlike that seen in the lower Laurentian Great Lakes during the 1960s.

Chronological Research History - The brief research history of Lake Winnipeg is outlined.

Stresses on the lake are increasing and continued scientific attention to the conditions in the lake is essential to identify and quantify chemical inputs, organisms and processes and to determine their fate in and effects on the lake ecosystem.

Through the leasing of the M.V. Namao, the LWRC provided on-lake access for federal, provincial and university investigators for a 3 year period to examine temporal and spatial variability of the chemical, physical and biological parameters of Lake Winnipeg. Support to the LWRC for the leasing of the Namao was provided by Manitoba Hydro, the provincial and federal governments and private funding. 65 lake-wide stations were sampled per survey.

 

The Nature of the Research (2002 to 2004) - Lake Winnipeg Research Consortium - The structure and details of the surveys are described.

Recent Findings
Findings presented herein are primarily from the 2003 field season; however, some comparisons are made with other years of research, including the early studies where possible.

Microorganisms
Phytoplankton
Zooplankton
Zoobenthos
Fish 1
Fish 2
Water chemistry

Literature Cited

Survey Details
2002
2003
2004