Results 181 to 190 of about 6,270 (213)

Monitoring of viruses in chum salmon (Oncorhynchus keta) migrating to Korea

Archives of Virology, 2011
It is important to investigate the prevalence of salmonid pathogens because they can affect the amount of release of salmonid fry and the migration rate of adult salmonids. In this study, routine surveys were conducted for investigating virus distribution in migrating chum salmon spawners (Oncorhynchus keta) and their offsprings at the Namdae River ...
C-H, Jeon, S-R, Kim, W-S, Kim, C-H, Lee, K-B, Seong, C-S, Lee, M-J, Oh, J-H, Kim   +7 more
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Detritus-Based Food Webs: Exploitation by Juvenile Chum Salmon ( Oncorhynchus keta )

Science, 1977
Harpacticoid copepods are the principal food of chum salmon during the first critical weeks of estuarine life. Heterotrophic food sources are preferentially ingested by harpacticoids. A commercially valuable fisheries resource, usually considered to be planktivorous, is related to a detritus-based, benthically derived food web.
J, Sibert, T J, Brown, M C, Healey, B A, Kask, R J, Naiman   +4 more
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The presence of androgens in salmon (Oncorhynchus Keta Walbaum

2012
The testes of chum salmon (Oncorhynchus keta Walbaum) were examined histologically and chemically to determine the source and nature of the male sex hormone. The histological examination showed that the interstitial tissue of the testis contains cells which are similar to the interstitial cells of Leydig described by other investigators. The extraction
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Miltpain, New Cysteine Proteinase from the Milt of Chum Salmon, Oncorhynchus keta

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 1997
A new cysteine proteinase, salmon miltpain, was isolated and purified from the milt of chum salmon (Oncorhynchus keta). Native molecular mass was estimated as 67,000 by gel filtration column chromatography (Shodex WS2003) and 22,300 by SDS-polyacrylamide gel electrophoresis. Isoelectoric point was determined to be 3.9 by isoelectric focusing. The first
C, Kawabata, E, Ichishima
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Metabolic pathways of carotenoids in chum salmon Oncorhynchus keta during spawning migration

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1987
1. Based on the contents and individual composition of carotenoids in the muscle, serum and ovaries of chum salmon during spawning migration, the reductive metabolism of astaxanthin to zeaxanthin was presumed to take place in the muscle of both male and female. 2.
S, Ando, M, Hatano
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Chum salmon Oncorhynchus keta respond to moonlight during homeward migrations

Journal of Fish Biology, 2012
The swimming depth of chum salmon Oncorhynchus keta equipped with archival tags was investigated off the Pacific Ocean coast of Hokkaido and North Honshu, Japan. As shown from movements of the fish with disc tags, O. keta swam at shallower depths during the full‐moon phase than in the other phases and their swimming speed during this phase was faster ...
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Catalytic properties of liver monoamine oxidase in the chum salmon Oncorhynchus keta

Journal of Evolutionary Biochemistry and Physiology, 2015
The substrate and inhibitory specificity of mitochondrial monoamine oxidase (MAO) in the liver of males of the summer form of the chum salmon Oncorhynchus keta was studied. As to the spectrum of deaminated substrates, the hepatic MAO of the chum salmon is similar to MAO of most terrestrial mammals, for eight classical MAO substrates similarity in their
I N, Basova, N E, Basova, O V, Yagodina
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On Catching Humpback Salmon Oncorhynchus gorbuscha and Chum Salmon Oncorhynchus keta of Rare Age

Russian Journal of Marine Biology, 2002
Data on catching humpback salmon Oncorhynchus gorbuscha at the age of 0 + and chum salmon Oncorhynchus keta at the age of 1+ in the Ilyushina River (Kunashir Island) in the period of spawning migration are given. The sex of fish, the body length, the stage of gonad maturity, and the number and width of sclerites on scales are indicated.
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Age Determination from Scales of Chum Salmon (Oncorhynchus keta)

Journal of the Fisheries Research Board of Canada, 1969
The methodology of age determination from scales of chum salmon (Oncorhynchus keta) is reviewed. Scales from chum salmon caught in the North Pacific Ocean and streams of North America were studied. Most annuli are of two main types: a poorly formed circulus usually "cut over" by the first circulus of new growth, and what appears to be a normal ...
John J. LaLanne, Gunnar Safsten
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The embryology of the Chum salmon Oncorhynchus Keta Walbaum

2009
[Abstract not available]
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