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Marine nutrients and carbon transported from the sea by adult salmon migrants are significant and important to the productivity of the oligotrophic lakes and streams in which they spawn. Past land-use practices and salmon harvesting are well known to have reduced the availability of salmonid carcasses to some streams, resulting in a decline in marine-derived nutrient and carbon sources for stream-rearing salmonids, including coho and chinook salmon, steelhead and cutthroat trout and char. Forty-two years of escapement records for five species of Pacific salmon were examined for Georgia Strait, the west coast of Vancouver Island, and the mainland coast of British Columbia, to estimate the status of nutrient sources. Salmon stocks from enhanced streams frequently dominated escapements for entire regions, and as a result, the majority of the incoming marine nutrients are focused towards large stream systems already undergoing significant salmon enhancement, while nutrient influx to smaller, unenhanced streams ...
Larkin, G.A., Slaney, P.A.. 1996. Trends in Marine-derived Nutrient Sources to South Coastal BC Streams: Impending Implications to Salmonid Production. Ministry of Environment, Lands and Parks; Ministry of Forests. Watershed Restoration Management Report. WRMR03
English Name: Cutthroat Trout, Chinook Salmon, Rainbow Trout, Coho Salmon
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