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Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 78:1732-1743
The decline of southern resident killer whales (Orcinus orca) may be due to a shortage of prey, but there is little data to test this hypothesis. We compared the availability of prey (Chinook salmon, Oncorhynchus tshawytscha) sought by southern resid
Autor:
Katherine R. Znotinas, Stephanie A. Liss, James S. Hughes, Huidong Li, Ryan A. Harnish, Eric S. Fischer, Zhiqun Daniel Deng, Shannon E. Blackburn
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 78:943-957
Two laboratory studies evaluated small Chinook salmon (Oncorhynchus tshawytscha) (36–99 mm fork length (FL), 0.7%–26.7% tag burden) survival, tag retention, and growth (n = 539) and critical swimming speed (Ucrit; n = 241). Fish were implanted wi
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 78:312-321
Declining primary production has been proposed as an explanation for the declines in coho (Oncorhynchus kisutch) and Chinook (Oncorhynchus tshawytscha) salmon in the Salish Sea since the 1970s. Marine sediments maintain a continuous record of conditi
Autor:
Stanley J. Zuray, Christian E. Zimmerman, Sarah M. Laske, Sean Larson, Stephen D. McCormick, Amy M. Regish, Randy J. Brown, Lizabeth Bowen, Michael P. Carey, Daniel S. Donnelly, Vanessa R. von Biela, Shannon C. Waters
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 77:1878-1892
Migrating adult Pacific salmon (Oncorhynchus spp.) are sensitive to warm water (>18 °C), with a range of consequences from decreased spawning success to early mortality. We examined the proportion of Yukon River Chinook salmon (O. tshawytscha) exhib
Autor:
Alexander Loren Koeberle, Daniel Gomez-Uchida, Shannon E. Richardson, David L. G. Noakes, Whitney L. Crittenden, Ivan Arismendi, Cecilia Yanina Di Prinzio
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 77:1172-1188
Chinook salmon (Oncorhynchus tshawytscha) are widely distributed across the globe, with native stocks in the North Pacific Ocean and self-sustained populations in both the Northern and Southern hemispheres. In their native range, Chinook salmon face
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 77:651-665
The “shifting baseline syndrome” (SBS) is the paradigm whereby recent species abundances and environmental conditions are accepted as reflecting historical conditions. This leads to false impressions of the past, inaccurate baselines, and unreali
Autor:
Tyler H. Dann, Sara E. Gilk-Baumer, William D. Templin, James E. Seeb, Carita E. Pascal, Garrett J. McKinney, Lisa W. Seeb
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 77:451-461
Chinook salmon (Oncorhynchus tshawytscha) are migratory fish that are highly valued for subsistence, sport, and commercial fisheries throughout their native range. Populations of Chinook salmon in western Alaska have exhibited long-term declines, lea
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 77:226-235
Salmon straying is often defined as the failure of adults to return to their natal river system. However, straying within a river basin can be problematic if hatchery salmon do not return to their hatchery of origin and subsequently spawn in the wild
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 76:2035-2044
Previous research has demonstrated a large movement of hatchery-reared Chinook salmon (Oncorhynchus tshawytscha) from Lake Huron to Lake Michigan, suggesting the potential for wild fish to exhibit similar movement patterns. We assessed the feasibilit
Autor:
Mark J. Henderson, Benjamin P. Sandford, A. Michelle Wargo Rub, David J. Teel, Olaf P Langness, Matthew J. Tennis, Bjorn K. van der Leeuw, Nicholas A. Som, Donald M. Van Doornik, David D. Huff
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 76:1862-1873
Considerable effort towards conservation has contributed to the recovery of historically depleted pinniped populations worldwide. However, in several locations where pinnipeds have increased, they have been blamed for preventing the recovery of comme