Has Steller Sea Lion Predation Impacted Survival of Fraser River Sockeye Salmon?

Fisheries ◽  
2020 ◽  
Vol 45 (11) ◽  
pp. 597-604
Author(s):  
Carl J. Walters ◽  
Murdoch K. McAllister ◽  
Villy Christensen
Keyword(s):  
Sockeye Salmon ◽  
Steller Sea Lion ◽  
Fraser River ◽  
Sea Lion

scholarly journals Dermatophytosis in a Steller Sea Lion (Eumetopias jubatus).

1994 ◽  
Vol 56 (3) ◽  
pp. 551-553 ◽  
Author(s):  
Eri TANAKA ◽  
Takahiro KIMURA ◽  
Sinpei WADA ◽  
Kisio HATAI ◽  
Seizaburou SONODA
Keyword(s):  
Steller Sea Lion ◽  
Eumetopias Jubatus ◽  
Sea Lion

Abundance and Distribution of the Steller Sea Lion

1961 ◽  
Vol 42 (2) ◽  
pp. 223 ◽  
Author(s):  
Karl W. Kenyon ◽  
Dale W. Rice
Keyword(s):  
Steller Sea Lion ◽  
Sea Lion ◽  
Abundance And Distribution

Biochemical Studies on Sockeye Salmon During Spawning Migration: XI. The Free Histidine Content of the Tissues

1960 ◽  
Vol 17 (3) ◽  
pp. 347-351 ◽  
Author(s):  
J. D. Wood ◽  
D. W. Duncan ◽  
M. Jackson
Keyword(s):  
Amino Acid ◽  
Sockeye Salmon ◽  
Alimentary Tract ◽  
Oncorhynchus Nerka ◽  
The Other ◽  
Spawning Migration ◽  
Fraser River ◽  
Initial Value ◽  
Spawning Grounds ◽  
Biochemical Studies

During the first 250 miles (400 km) of spawning migration of Fraser River sockeye salmon (Oncorhynchus nerka) the free histidine content of the muscle, alimentary tract, and head+skin+bones+tail decreased to a small fraction of the initial value. A further decrease occurred in the levels of this amino acid in the alimentary tract during the subsequent 415-mile (657-km) migration to the spawning grounds, no change being observed with the other tissues. Comparatively small changes in free histidine were found with heart, spleen, liver, kidney and gonads during migration.

A widespread decrease in productivity of sockeye salmon (Oncorhynchus nerka) populations in western North America

2012 ◽  
Vol 69 (8) ◽  
pp. 1255-1260 ◽  
Author(s):  
Randall M. Peterman ◽  
Brigitte Dorner
Keyword(s):  
Sockeye Salmon ◽  
Spatial Scales ◽  
Oncorhynchus Nerka ◽  
Geographic Area ◽  
Fraser River ◽  
Western North America ◽  
Southeast Alaska ◽  
The Past ◽  
Large Geographic Area ◽  
Marine Areas

We used data on 64 stocks of sockeye salmon ( Oncorhynchus nerka ) from British Columbia (B.C.), Washington, and Alaska to determine whether recent decreases in abundance and productivity observed for Fraser River, B.C., sockeye have occurred more widely. We found that decreasing time trends in productivity have occurred across a large geographic area ranging from Washington, B.C., southeast Alaska, and up through the Yakutat peninsula, Alaska, but not in central and western Alaska. Furthermore, a pattern of predominantly shared trends across southern stocks and opposite trends between them and stocks from western Alaska was present in the past (1950–1985), but correlations have intensified since then. The spatial extent of declining productivity of sockeye salmon has important implications for management as well as research into potential causes of the declines. Further research should focus on mechanisms that operate at large, multiregional spatial scales, and (or) in marine areas where numerous correlated sockeye stocks overlap.

Seasonal changes in pelagic fish biomass around the Chiswell Island Steller sea lion rookery in 2003

2008 ◽  
Vol 93 (1-2) ◽  
pp. 179-185 ◽  
Author(s):  
Charles F. Adams ◽  
Robert J. Foy ◽  
Devin S. Johnson ◽  
Kenneth O. Coyle
Keyword(s):  
Seasonal Changes ◽  
Pelagic Fish ◽  
Steller Sea Lion ◽  
Fish Biomass ◽  
Sea Lion

scholarly journals Adnocarcinoma of the Lung in a Steller Sea Lion (Eumetopiae jubatus).

1998 ◽  
Vol 60 (12) ◽  
pp. 1349-1351 ◽  
Author(s):  
Shinji SATO ◽  
Hiroki KITAMURA ◽  
Masaaki MORI ◽  
Masahiro FUKAZAWA ◽  
Masanori TAKEDA ◽  
...  
Keyword(s):  
Steller Sea Lion ◽  
Sea Lion

The Influence of Climate on the Stock and Recruitment of Pink and Sockeye Salmon from the Fraser River, British Columbia, Canada

2004 ◽  
Vol 133 (6) ◽  
pp. 1396-1412 ◽  
Author(s):  
R. J. Beamish ◽  
J. T. Schnute ◽  
A. J. Cass ◽  
C. M. Neville ◽  
R. M. Sweeting
Keyword(s):  
British Columbia ◽  
Sockeye Salmon ◽  
Fraser River ◽  
Stock And Recruitment
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