Results 171 to 180 of about 9,372 (204)

cDNA for Ribosomal Protein S2 in Sockeye Salmon, Oncorhynchus nerka

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 1997
We isolated a cDNA encoding ribosomal protein S2 in sockeye salmon, Oncorhynchus nerka, using a reverse transcriptase-polymerase chain reaction (RT-PCR) method. The cDNA encoding ribosomal protein S2 is composed of 933 nucleotides, and has a 5'-noncoding sequence of 9 bases, a 885 base open reading frame coding for a 294 amino acid polypeptide, and a ...
S, Hiraoka, M, Iwata, T, Yanagisawa, H, Nagasawa, A, Urano   +4 more
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Postspawning survival in lacustrine sock-eyed salmon Oncorhynchus nerka Walb

Biology Bulletin, 2011
The state of gonads, age, structure of scales, and size of specimens of the resident lacustrine form of sock-eyed salmon--kokanee Onchorhynchus nerka--are analyzed. In stocked, previously fishless, lakes, there are specimens that have survived spawning and have remained active for a year or several years.
G N, Markevich, E G, Ivashkin, E D, Pavlov   +2 more
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Liver arginase activity in the sockeye salmon, Oncorhynchus nerka

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1971
Abstract 1. 1. Liver arginase levels in adult sockeye salmon show characteristics similar to that of higher animals. 2. 2. Results show that sockeye liver arginase has a pH optimum of 9·5, is partially dependent on Mn2+ ions and has a temperature optimum of 45°C.
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Osmoregulatory capability in juvenile sockeye salmon (Oncorhynchus nerka)

Canadian Journal of Zoology, 1971
The osmoregulatory capability of sockeye salmon (Oncorhynchus nerka) embryos and fry was tested at weekly intervals by exposing them for 5 days to seawater with a salinity of 29‰. Juveniles that survived the 5-day test were considered to be euryhaline.
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Energy expenditures during reproduction by sockeye salmon (Oncorhynchus nerka)

Behaviour, 2003
From 1994 to 1996, behaviour and energy use by sockeye salmon spawning in Gluskie Creek, British Columbia, was investigated by a combination of behavioural observation and electromyogram (EMG) telemetry. The spawning life was 7.6 days for males and 10.6 days for females.
null Healey, null Hinch, null Lake
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Fine structure of the adenohypophysis in immature sockeye salmon, Oncorhynchus nerka

Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1973
The ultrastructure of the secretory cells of the adenohypophysis of juvenile sockeye salmon was investigated. Pituitary glands were collected from immature fish transferred experimentally to sea water and subsequently returned to fresh water. The rostral pars distalis contained three cell types: ACTH cells, prolactin cells, and non-secretory cells. The
B A, McKeown, J F, Leatherland
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Genetic Analysis of Oncorhynchus Nerka : Life History and Genetic Analysis of Redfish Lake Oncorhynchus Nerka, 1993-1994 Completion Report.

1994
The study has shown through life history examination and DNA analysis that three forms of O. nerka are present in Redfish Lake. The three forms are closely related, but may be sufficiently different to be considered three separate stocks. Fishhook Creek kokanee are temporally isolated from the beach spawners, and may represent the gene pool most ...
E.L. Brannon, G.H. Thorgaard, S.A. Cummings   +2 more
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Photoperiodic activity changes in juvenile sockeye salmon (Oncorhynchus nerka)

Canadian Journal of Zoology, 1971
Spontaneous locomotor activity was studied in juvenile sockeye salmon under controlled environmental conditions (LD 9.5:14.5 or 12:12; 5 °C; 0.1–34.4 lux). Siblings were hatched in activity chambers and swimming movements were monitored with an ultrasonic system for 11 months.
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Olfactory gene expression in migrating adult sockeye salmon Oncorhynchus nerka

Journal of Fish Biology, 2018
Expression of 12 olfactory genes was analysed in adult sockeye salmon Oncorhynchus nerka nearing spawning grounds and O. nerka that had strayed from their natal migration route. Variation was found in six of these genes, all of which were olfc olfactory receptors and had lower expression levels in salmon nearing spawning grounds.
N N, Bett, S G, Hinch, K H, Kaukinen, S, Li, K M, Miller   +4 more
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Sex Ratios in Sockeye Salmon (Oncorhynchus nerka)

Journal of the Fisheries Research Board of Canada, 1954
A low male:female ratio (average for 14 years—32.4% males) occurs in the sockeye salmon spawning escapements to Cultus Lake. Factors likely to cause such unequal sex representation are examined. Sex ratios of seaward-migrating smolts (7 years' records) were found to approximate 50:50. Selection of male fish by the gill-net fishery, while contributing,
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