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Power Generation / Transmission
Conawapa Hydroelectric Project
North/South conducted more than 30 interdisciplinary studies on the lower Nelson River between 1988 and 1992, as part of the Environmental Impact Assessment of the proposed 1390 MW Conawapa Generating Station.
Examples of studies conducted include assessments of: water chemistry and sedimentation changes; reservoir creation on the riverine invertebrate and fish community; downstream flow regulation on species composition and abundance of aquatic insect larvae; flow regulation on wetted downstream area of the river and relationship to distribution and abundance of fish; instream flow needs for fish; fish movements using mark and recapture and radio-telemetry; methyl mercury concentration changes in fish; and impacts to estuarine hydrodynamics. Additional studies included baseline aquatic resource inventories and stream crossing surveys with respect to access roads, bridge and culvert installation, and HVDC transmission line construction.
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