Results 121 to 130 of about 8,700 (238)

Juvenile Chinook salmon accumulate harmful levels of toxic contaminants while undergoing their seaward migration

, 2022
Puget Sound Chinook salmon are listed as threatened under the Endangered Species Act (ESA) and habitat degradation and loss, overfishing, climate change and contaminant exposure are factors contributing to their decline.
Carey, Andrea
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Angler Response to Success in the California Salmon Sportfishery: Evidence and Management Implications

This paper examines effort responsiveness to success in the California salmon partyboat sport fishery. The management process in this important fishery involves setting target harvest levels for both commercial and sportfishing groups and then using ...
Wilen, James E., Andrews, Elizabeth J.
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Identifying drivers of demographic rates in an at‐risk population of marine mammals using integrated population models

Ecosphere
Effective conservation of threatened populations requires identification of the processes limiting recovery. When multiple population processes are potentially limiting, they are sometimes analyzed independently, often using different datasets ...
Benjamin W. Nelson, Eric J. Ward, Daniel W. Linden, Erin Ashe, Rob Williams   +4 more
doaj   +1 more source

Chinook salmon : life in the watershed

Chinook salmon are the largest of any of the salmon in Oregon. Mature fish range from less than 2 pounds to more than 70 pounds. In the late 1800s, chinook salmon were almost the only species taken for canning in the Columbia River, with production ...
Oregon State University. Sea Grant College Program, Fitzpatrick, Martin S.   +1 more
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Vertebral abnormalities in free-living Chinook salmon (Oncorhynchus tshawytscha, Walbaum) in New Zealand

, 2018
Spinal abnormalities are common in farmed Chinook Salmon in New Zealand. We report spinal abnormalities in adult Chinook salmon which were predominantly hatchery reared and released as smolts and which we term free-living.
Perrott, Matthew R., Walker, Seumas P., Mark Preece, Peter S. Davie, John S. Munday, Seumas P. Walker, Matthew R. Perrott, Symonds, Jane E., De Clercq, Adelbert, Jane E. Symonds, Munday, John S., Adelbert De Clercq, Davie, Peter S., Preece, Mark   +13 more
core   +1 more source

Using an International Econometric Model to Forecast Alaska Salmon Revenues

As Alaska prices tumbled in the 1990s, Alaska's Senate Special Committee on Domestic and International Commercial Fisheries requested a comprehensive review of the Alaska salmon enhancement program.
Herrmann, Mark
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Maternal Effects and the Evolution of Chinook Salmon [PDF]

, 2018
Pacific salmon (Oncorhynchus spp.) populations are under increasing threat due to habitat degradation, over fishing, invasive pathogens, and climate change. The early life history stage (fertilization – free feeding) is one of the most vulnerable developmental phases and performance at this stage may be a critical factor affecting population ...
openaire  

Screening of blood and mucus parameters towards breeding for resistance to salmon louse (lepeophtheirus salmonis) in atlantic salmon

, 2012
Over the last three decades salmon farmers have experienced serious economic hardships due to losses caused by sea lice (Lepeophtheirus salmonis) infestations. In the absence of an effective vaccine, inefficiency of biological control methods and growing
Amit, Das
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Modeling of Chinook Salmon Runs on the North Umpqua River

To model the behavior of the spring run Chinook salmon, we expanded the current dataset of salmon counts at the Winchester Dam, Winchester, Oregon, to include historical data from 1991 through 1997.
Jordan, Scott
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Physical controls on salmon spawning habitat quality and embryo fitness: an integrated analysis

, 2011
The research focusses on the river Lugg – a cross-border catchment and major tributary of the river Wye, the most important Atlantic salmon river in England and Wales.
Burke, Niamh
core