Results 11 to 20 of about 44,758 (248)

Consequences of high temperatures and premature mortality on the transcriptome and blood physiology of wild adult sockeye salmon (Oncorhynchus nerka). [PDF]

open access: yesEcol Evol, 2012
Elevated river water temperature in the Fraser River, British Columbia, Canada, has been associated with enhanced mortality of adult sockeye salmon (Oncorhynchus nerka) during their upriver migration to spawning grounds.
Jeffries KM   +8 more
europepmc   +2 more sources

Review of Major and Minor Pathogens of Adult Pacific Salmon (Oncorhynchus spp.) in Freshwater in the Pacific Northwest of North America [PDF]

open access: yesPathogens
This comprehensive review examines pathogens affecting adult anadromous Pacific salmon (Oncorhynchus spp.) during their terminal freshwater migration and spawning across populations from California through Alaska, including Oregon, Washington, and ...
Tamsen M. Polley   +6 more
doaj   +2 more sources

Parvicapsula pseudobranchicola in the northeast Pacific Ocean is rare in farmed Atlantic salmon Salmo salar despite widespread occurrence and pathology in wild Pacific salmon Oncorhynchus spp. [PDF]

open access: yesParasites & Vectors, 2023
Background Infection with the myxozoan parasite Parvicapsula pseudobranchicola causes disease in wild and farmed salmonids in Norway. In the northeast Pacific Ocean, the parasite has been reported in Pacific salmon Oncorhynchus spp.
Simon R. M. Jones   +2 more
doaj   +2 more sources

Travel specific resource selection by female Kodiak brown bears during the sockeye salmon spawning season [PDF]

open access: yesMovement Ecology
Background Access to salmon resources is vital to coastal brown bear (Ursus arctos) populations. Deciphering patterns of travel allowing coastal brown bears to exploit salmon resources dispersed across the landscape is critical to understanding their ...
William B. Leacock   +2 more
doaj   +2 more sources

Non-native prey availability and over-compensatory density dependence drive population dynamics of a native fish predator. [PDF]

open access: yesEcol Appl
Abstract Understanding the factors that regulate population dynamics is crucial for conserving imperiled species. Bull trout (Salvelinus confluentus), a piscivorous salmonid and one of North America's most threatened cold‐water species, has declined significantly due to habitat loss, overfishing, invasive species, and climate change.
Cochrane MM   +5 more
europepmc   +2 more sources

The first finding of sockeye salmon Oncorhynchus nerka (Walbaum) in the Bolshaya River on Zavyalov Island

open access: yesИзвестия ТИНРО, 2022
The sockey salmon entry to the Bolshaya River on Zavyalov Island in the northern Okhotsk Sea was registered for the first time on July 26, 2021. Larger specimens were observed among the pink salmon going to spawn in this river, and one of them was caught
M. B. Gorshunov
doaj   +1 more source

Sockeye salmon of Iturup Island: characteristics of spawners from commercial catches in 2021

open access: yesИзвестия ТИНРО, 2022
Spawners of sockeye salmon caught in northern Iturup and in the Prostor Bay and Kurilsky Bay in July-August, 2021 are investigated. Almost all of them had the age 1.2+ or 1.3+, with prominent prevalence of the former both for females (88.9 %) and males ...
A. N. Elnikov, O. V. Zelennikov
doaj   +1 more source

Strontium signal lag in otoliths of juvenile sockeye salmon ( Oncorhynchus nerka) during transition from the freshwater to marine environments

open access: yesИзвестия ТИНРО, 2022
The shift in strontium (Sr) concentrations in fish otoliths is a commonly used proxy for identification of marine environment entry during diadromous migrations.
Yu. Kuzmenko   +5 more
doaj   +1 more source

Thermal sensitivity and flow-mediated migratory delays drive climate risk for coastal sockeye salmon

open access: yesFACETS, 2021
Climate change is subjecting aquatic species to increasing temperatures and shifting hydrologic conditions. Understanding how these changes affect individual survival can help guide conservation and management actions.
William I. Atlas   +8 more
doaj   +1 more source

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