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A Comparative Study of the Chromosomes in the Chum Salmon, the Kokanee Salmon and their Hybrids [PDF]
Caryologia, 1968 SUMMARYThe somatic chromosomes were studied in the chum salmon (Oncorhynchus keta), the kokanee salmon (O. nerka) and their hybrids, by application of the routine air-drying method. The diploid numbers were 74 for the chum salmon and 58 for the kokanee salmon. Their hybrids showed 66 chromosomes corresponding to a total sum of the haploid number of the
Motomichi Sasaki +3 more
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Genetic assessment of a summer chum salmon metapopulation in recovery [PDF]
Evolutionary Applications, 2013 AbstractPrograms to rebuild imperiled wild fish populations often include hatchery‐born fish derived from wild populations to supplement natural spawner abundance. These programs require monitoring to determine their demographic, biological, and genetic effects.
Small, Maureen P +3 more
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Frontiers in Marine Science, 2021 We examined spatial patterns in diet, trophic niche width and niche overlap for chum, pink and sockeye salmon across the North Pacific during 1959–1969. This is a baseline period before major hatchery enhancement occurred coinciding with a negative phase
Caroline Graham +7 more
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Differential rejection of salmon lice by pink and chum salmon
, 2007 The consequences of high (735 copepodids fish-1) and low (243 copepodids fish-1) level exposures of size-matched juvenile pink and chum salmon to Lepeophtheirus salmonis copepodids were examined. At both levels of exposure the prevalence and abundance of
Fast, Mark D. +3 more
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Известия ТИНРО, 2023 A quasi-cyclicity associated with variability of environmental conditions is detected for the regression residuals of the stock-recruitment model for chum salmon Oncorhynchus keta in the Okhotsk district, described by Ricker’s equation.
V. I. Ostrovsky
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Tryptophan requirement of chum salmon fry.
NIPPON SUISAN GAKKAISHI, 1985 Quantitative tryptophan requirement of chum salmon Oncorhynchus keta fry was determined by feeding purified diets containing crystalline L-amino acids and 5% casein as nitrogen sources for 4 weeks. The basal diet was isonitrogenously supplemented with graded levels (0.05, 0.08, 0. 16, 0.24, 0.32, 0.40, 0.48 and 0.56% in diet) of tryptophan by adjusting
AKIYAMA, Toshio +3 more
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Frontiers in Ecology and EvolutionAs distributional shifts of marine species into the Arctic become more frequent, these range-expanding individuals may exhibit unique traits that facilitate survival and establishment in new places.
Karen M. Dunmall +4 more
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Frontiers in Ecology and Evolution, 2019 The disproportionate effects of some species can drive ecosystem processes and shape communities. This study investigates how distributions of spawning Pacific salmon within streams, salmon consumers, and the surrounding landscape mediate the ...
Joel M. S. Harding +11 more
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BASIS FOR SELECTION OF RIVERS FOR MONITORING ON THE STOCKS OF CHUM AND PINK SALMON IN THE AMUR RIVER
Известия ТИНРО, 2019 The monitoring of chum and pink salmon escapement to spawning grounds in the Amur River basin was stopped in 2009. To start it again, a proved choice of the rivers is necessary for adequate controlling of these species number, by the spawning habitats of
S. F. Zolotukhin
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Characteristics of spawners of chum salmon Oncorhynchus keta from commercial stock of Iturup Island
Известия ТИНРО, 2023 Chum salmon spawners returned for spawning in the rivers of Prostor and Kurilsky Bays on Iturup Island (Kuril Islands, Sakhalin Region) were examined in the period from September 19 to November 4, 2022. Both females and males had mostly the age 3+ (68.8 %
A. N. Elnikov, O. V. Zelennikov
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