Results 21 to 30 of about 44,758 (248)
Simple dynamics underlie sockeye salmon (Oncorhynchus nerka) cycles [PDF]
Canadian Journal of Fisheries and Aquatic Sciences, 1998 A variety of mechanisms have been proposed to explain the renowned British Columbia sockeye salmon (Oncorhynchus nerka) cycles, most of which invoke between-brood interactions (delayed density dependence) or depensatory harvest practices. We examine the dynamics of the Ricker model with realistic parameter values and suggest that the cycles could ...
Myers, Ransom A. +3 more
openaire +1 more source
PLoS ONE, 2020 In 2015, the Pacific marine heat wave, low river flows, and record high water temperatures in the Columbia River Basin contributed to a near-complete failure of the adult migration of endangered Snake River sockeye salmon (Oncorhynchus nerka, NOAA ...
Lisa G. Crozier +7 more
doaj +2 more sources
Migration and survival of Okanagan River Sockeye Salmon Oncorhynchus nerka, 2012–2019
Animal Biotelemetry, 2021 Background Okanagan River Sockeye Salmon Oncorhynchus nerka (Okanagan Sockeye) are one of two remaining self-sustaining Sockeye Salmon populations in the Columbia River Basin.
Josh Murauskas +6 more
doaj +1 more source
NMR — SPECTROSCOPY TECHNIQUE FOR SALMON FISH SPECIES QUALITY ASSESSMENT
Пищевые системы, 2019 NMR-spectroscopy was used for development of the criteria which characterize the chilled and frozen fish quality. It has been shown that 1H-NMR experiments can be used as quality factor to measure the concentration of inosine, hypoxanthine and inosine-5’-
L. S. Abramova +2 more
doaj +1 more source
Endangered wild salmon infected by newly discovered viruses
eLife, 2019 The collapse of iconic, keystone populations of sockeye (Oncorhynchus nerka) and Chinook (Oncorhynchus tshawytscha) salmon in the Northeast Pacific is of great concern. It is thought that infectious disease may contribute to declines, but little is known
Gideon J Mordecai +11 more
doaj +1 more source
Genetic analysis of Oncorhynchus nerka. Annual progress report [PDF]
, 1992 The 1990 project to develop DNA assessment techniques for the purpose of determining relationships among populations of Oncorhynchus nerka demonstrated differences that had potential for such application. The work was continued in 1991 with specific application of the techniques to develop DNA probes that could be used in separating populations of 0 ...
E.L. Brannon +5 more
openaire +3 more sources
Single‐parentage assignments reveal negative‐assortative mating in an endangered salmonid
Ecology and Evolution, 2022 Understanding reproductive patterns in endangered species is critical for supporting their recovery efforts. In this study we use a combination of paired‐parent and single‐parent assignments to examine the reproductive patterns in an endangered ...
Craig A. Steele +3 more
doaj +1 more source
Scientific Reports, 2022 Stocking programs have been widely implemented to re-establish extirpated fish species to their historical ranges; when employed in species with complex life histories, such management activities should include careful consideration of resulting ...
Sarah L. Chang +3 more
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An EvoDevo Study of Salmonid Visual Opsin Dynamics and Photopigment Spectral Sensitivity
Frontiers in Neuroanatomy, 2022 Salmonids are ideal models as many species follow a distinct developmental program from demersal eggs and a large yolk sac to hatching at an advanced developmental stage. Further, these economically important teleosts inhabit both marine- and freshwaters
Mariann Eilertsen +12 more
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Age composition of Chukchi sockeye salmon Oncorhynchus nerka
Известия ТИНРО, 2014 Long-term data on age composition for Chukchi populations of sockeye salmon are presented. Spawners of 23 ages are recognized in the period 1970-2013 for 10 populations: 2+, 3+, 0.1+, 0.2+, 0.3+, 0.4+, 0.5+, 1.1+, 1.2+, 1.3+, 1.4+, 1.5+, 2.1+, 2.2+, 2.3+,
Elena V. Golub’
doaj +1 more source