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The Forgotten Requirement for Age Validation in Fisheries Biology
It is shown that estimated ages greater than the maximum validated age must not be considered accurate and use of inaccurate ages has caused serious errors in the management and understanding of fish populations.
Pacific salmon production trends in relation to climate
The long-term pattern of the Aleutian Low pressure system corresponded to the trends in salmon catch, to copepod production, and to other climate indices, indicating that climate and the marine environment may play an important role in salmon production.
Production of Fraser River sockeye salmon (Oncorhynchus nerka) in relation to decadal-scale changes in the climate and the ocean
The response of Fraser River sockeye to climate changes may be a specific example of a more general response by a number of species of fishes in the Pacific and perhaps in other oceans.
Adult Biology of the River Lamprey (Lampetra ayresi) and the Pacific Lamprey (Lampetra tridentate) from the Pacific Coast of Canada
- R. Beamish
- Environmental Science
- 1 November 1980
Pacific lamprey (Lampetra tridentata) begin metamorphosis in July and the known period of entry into salt water is from December until June and feeding can commence in freshwater or salt water by mid-October.
Evidence That Reduced Early Marine Growth is Associated with Lower Marine Survival of Coho Salmon
Coho salmon from the Strait of Georgia were used to test the hypothesis that slower growing fish in their first ocean year had lower survival over the late fall and winter than faster growing fish, indicating that brood year strength is related to growth in the first marine year.
A critical size and period hypothesis to explain natural regulation of salmon abundance and the linkage to climate and climate change
Ecosystems and Their Goods and Services
Follow this and additional works at: http://lib.dr.iastate.edu/ge_at_pubs Part of the Climate Commons, Environmental Indicators and Impact Assessment Commons, and the Systems Biology Commons The…
Age determination methods for fishes studied by the Groundfish Program at the Pacific Biological Sta
General Effects of Climate Change on Arctic Fishes and Fish Populations
Preparedness to meet challenges of climate change in the Arctic with respect to fish and fisheries is limited due to a dearth of basic knowledge regarding fish biology and habitat interactions in the north, complicated by scaling issues and uncertainty in future climate projections.
Acidification of the La Cloche Mountain Lakes, Ontario, and Resulting Fish Mortalities
The loss of populations of lake trout, herring, white suckers, and other fishes in Lumsden Lake was attributed to increasing levels of acidity within the lake, and an absence of fishes was also observed in nearby lakes.