Potential impacts of global warming on salmon production in the Fraser River watershed
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Potential impacts of global warming on salmon production in the Fraser River watershed by Levy, D. A.

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Published by Environment Canada, Climate Services Division, Atmospheric Environment Service [distributor] in [Ottawa], Downsville, Ont .
Written in English


Book details:

Edition Notes

Other titlesIncidences potentielles du réchauffement climatique sur la production de saumons dans le bassin hydrographique du fleuve Fraser.
Statementprepared for Climate Change Digest Atmospheric Environment Service ; by David A. Levy.
SeriesClimate change digest,, CCD 94-04
ContributionsCanada. Atmospheric Environment Service., Canadian Climate Centre.
Classifications
LC ClassificationsQC981.8.C5 L49 1994
The Physical Object
Pagination15, 17 p. ;
Number of Pages17
ID Numbers
Open LibraryOL876146M
ISBN 100662612671
LC Control Number95162619

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Climate Change in the Fraser River Watershed: Flow and Temperature Projections. global warming is typically expected We simulated metabolic power consumed by Fraser River sockeye salmon. Global warming has already significantly changed our Fraser River. Its waters are warming and its flows are shifting to earlier in the year. By summer when the legendary salmon runs surge into the river to spawn, the river is more often becoming too warm and low for their survival. Rising temperature in Fraser River affecting Salmon population The Fraser River is heating up because of climate change and an increasing number of salmon are dying in the warmer water from Author: Mark Hume. Complex trophic interactions lead to projected global ocean productivity decreases of % by the s from increasing acidification, although primary production in the Arctic is expected to increase by 59% (Yool et al. ). A food web model of Puget Sound projected very limited impacts on .

Fraser River sockeye salmon (Oncorhynchus nerka) and other salmon species. The effects of climate change most relevant to Fraser River sockeye include warming of freshwater and marine habitats. Global & Local Threats Climate change is arguably the most desperate threat to sockeye salmon. One way this manifests is through “The Blob,” a large mass of warm water of the northwest coast of North America that is attributed with causing some of the unusual weather conditions recently experienced along the Pacific Coast. Abstract An analysis of the historic flows and water temperatures of the Fraser River system has detected trends in both the annual flow profile and the summer temperatures. This study was undertaken to determine if these trends are likely to continue under the conditions predicted by . Jun 10,  · The Fraser River watershed is a major spawning ground for Sockeye and Chinook salmon, accounting for the majority of the Canadian stocks (DFO, a, DFO, b). Sockeye salmon begin their lives in spawning beds distributed throughout the watershed. Eggs laid in these beds hatch in the following imeldaclyde.com by:

Potential impacts of global warming on salmon production in the Fraser River watershed / by David A. Levy. QC C5 C NO Mackenzie Basin impact study: summary of interim report #2 / prepared for Climate change digest, Atmospheric Environment Service by Stewart J. Cohen. In descending order of importance, artificial spawning channels, density-dependent mortality, carryover mortality, and climate have significant influences on the average productivity of Fraser River sockeye salmon (Oncorhynchus nerka).When factors that are known or have been hypothesized to affect Fraser River sockeye salmon productivity are included in a single analytical framework, no Cited by: Effects of Global Warming on Trout and Salmon in U.S. Streams 4 for all modeled species. By the year , for example, % of those locations currently suitable for cold water fish become too warm to provide suitable habitat. Loss of trout habitat in the South, Southwest, and Northeast could be particularly severe, although substantial. Mar 31,  · Populations of Fraser River sockeye salmon are so fine-tuned to their environment that any further environmental changes caused by climate change could lead to the disappearance of some.