Journal ArticleDOI
Effect of incubation temperature on the development of five species of Pacific salmon (Oncorhynchus) embryos and alevins
C. B. Murray,J. D. McPhail +1 more
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Alevin survival to emergence was high for all species, except for coho and pink salmon at 14 °C, and coho salmon hatched and emerged sooner at all temperatures than the other species.Abstract:
Embryo and alevin survival, time to hatching and emergence, and alevin and fry size of five species of Pacific salmon (Oncorhynchus) were observed at five incubation temperatures (2, 5, 8, 11, and ...read more
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Journal ArticleDOI
Latitudinal Clines: A Trade‐Off between Egg Number and Size in Pacific Salmon
Ian A. Fleming,Mart R. Gross +1 more
TL;DR: It is suggested that local optima in egg size may result in latitudinal clines in egg number, and that egg number evolves around selection for egg size, which is in fact predicted by life history theory and may explain the clutch size patterns observed in many organisms.
Journal ArticleDOI
Maximum Temperature Limits for Chinook, Coho, and Chum Salmon, and Steelhead Trout in the Pacific Northwest
Ann Richter,Steven A. Kolmes +1 more
TL;DR: Specific numeric maximum temperature criteria that can be integrated into a broader recovery planning process are described for sensitive life stages of three species of Pacific Northwest salmon and steelhead.
Journal ArticleDOI
Evolution of temporal isolation in the wild: genetic divergence in timing of migration and breeding by introduced chinook salmon populations.
TL;DR: It appears that spawning time may not only evolve during the initial phases of divergence, but it may play an important role in accelerating divergence in other traits.
Journal ArticleDOI
Population Structure of Columbia River Basin Chinook Salmon and Steelhead Trout
TL;DR: The population structure of chinook salmon and steelhead trout is presented as an assimilation of the life history forms that have evolved in synchrony with diverse and complex environments over their Pacific range to define life history evolutionary strategy to maximize fitness under the conditions delineated.
Journal ArticleDOI
Individual-based model of sympatric populations of brown and rainbow trout for instream flow assessment: model description and calibration
W. Van Winkle,Henriette I. Jager,Steven F. Railsback,B.D. Holcomb,T. K. Studley,J. E. Baldrige +5 more
TL;DR: In this paper, an individual-based model of sympatric populations of brown and rainbow trout in a stream habitat is described. But, the model is limited to a single stream segment in the Middle Fork Tule River, California.
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Temperature, Egg Size, and Development of Embryos and Alevins of Five Species of Pacific Salmon: A Comparative Analysis
Terry D. Beacham,Clyde B. Murray +1 more