Results 131 to 140 of about 1,814 (181)
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Magnetic field detection in sockeye salmon
Journal of Experimental Zoology, 1981AbstractPrevious research has indicated that lake‐migrating sockeye salmon fry have compass directional preferences, cued in part by magnetic fields. This paper reports the results of experiments designed to compare the magnetosensory system of salmon with those of other organisms.
Thomas P. Quinn +2 more
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Harvesting wellness with Okanagan sockeye salmon
2020Prior to colonization the Syilx Okanagan people were healthy and strong, by honouring reciprocal relationships with salmon and all living things. Colonization contributed to a loss of salmon abundance that is now being restored by the Syilx Okanagan Nation.
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Retinal projections in sockeye salmon smolts (Oncorhynchus nerka)
Cell and Tissue Research, 1988The retinal projections in 2-year-old salmon smolt (Oncorhynchus nerka) are significantly different from those observed in other teleosts examined to date in that the projections are more extensive. Very noticeable are extensive projections to most of the dorsal thalamus, to all layers of the optic tectum, and into the periaqueductal gray of the torus ...
S O, Ebbesson +3 more
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Maturational steroids and gonadotropin in upstream migratory sockeye salmon
General and Comparative Endocrinology, 1986The circulating serum concentrations of various steroid hormones in mature sockeye salmon were measured at four different developmental stages in their upstream migration to spawn at Adams River in British Columbia, Canada. In females, a high level of estradiol-17 beta was found in fish at the first location, and it persisted until immediately before ...
B, Truscott +3 more
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Dynamic in-lake spawning migrations by female sockeye salmon
Ecology of Freshwater Fish, 2007Abstract – Precise homing by salmon to natal habitats is considered the primary mechanism in the evolution of population‐specific traits, yet few studies have focused on this final phase of their spawning migration. We radio tagged 157 female sockeye salmon (Oncorhynchus nerka) as they entered Lake Clark, Alaska, and tracked them every 1–10 days to ...
D. B. Young, C. A. Woody
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Effect of introducing a competitor on cyclic dominance of sockeye salmon
Journal of Theoretical Biology, 2014We study the effects of introducing a competing species into a 3-species model for the population dynamics of sockeye salmon, thereby converting a food chain into a diamond module. We find that this often leads to the disappearance of the 4-year oscillation of sockeye salmon known as cyclic dominance when parameters are chosen such that all four ...
Christoph K. Schmitt +3 more
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Differences in Thermal Tolerance Among Sockeye Salmon Populations
Science, 2011Environmental conditions encountered during migration shape cardiorespiratory physiology in sockeye salmon.
Erika J, Eliason +9 more
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Vertebral Abnormalities in Sockeye, Pink, and Chum Salmon
Transactions of the American Fisheries Society, 1966Abstract Radiographs of vertebral structures of 10,377 sockeye, 4,403 chum, and 4,777 pink salmon collected in 1958 to 1962 were examined to determine the frequency of occurrence of abnormal vertebrae in wild populations of mature Pacific salmon. Various types of deviations from the orderly processes of development or segmentation that resulted in ...
Charles D. Gill, Donald M. Fisk
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An Improved Sibling Model for Forecasting Chum Salmon and Sockeye Salmon Abundance
North American Journal of Fisheries Management, 2007Abstract The sibling model is often one of the best methods for calculating preseason forecasts of adult return abundance (recruits) for populations of Pacific salmon Oncorhynchus spp. This model forecasts abundance of a given age-class for a given year based on the abundance of the previous age-class in the previous year.
Steven L. Haeseker +3 more
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The Skeena River Salmon Fishery, with Special Reference to Sockeye Salmon
Journal of the Fisheries Research Board of Canada, 1955The general history of the Skeena River commercial salmon fishery is presented from 1877 to 1948. The changes in fishing areas, seasons and fishing methods are described, together with the trends in the catches obtained. The most accurate data pertain to the important sockeye salmon gill-net fishery.
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