Results 181 to 190 of about 2,830 (222)

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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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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Results of the introduction of the resident form of nerka Oncorhynchus nerka in Tolmachevskoe Lake (Kamchatka)

Journal of Ichthyology, 2009
Data on the present-day (2003–2007) state of the population of kokanee Oncorhynchus nerka introduced in Tolmachevskoe Lake more than 20 years ago are provided. Since the moment of introduction, the population of kokanee has underwent considerable changes: a decrease occurred in the specific rate of growth, average length and weight of fish in catches ...
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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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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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THE LIFE HISTORY OF A DRACUNCULOID, PHILONEMA ONCORHYNCHI, IN ONCORHYNCHUS NERKA

Canadian Journal of Zoology, 1967
The life cycle of Philonema oncorhynchi was studied by infecting Cyclops bicuspidatus with larvae obtained from gravid female worms in spawning salmon and by subsequent infection of hatchery-reared salmon fingerlings. Later development of the worms was observed in naturally infected fingerling sockeye salmon maintained in fresh water for 2 years ...
Edward G. Platzer, James R. Adams
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HISTOLOGY AND HISTOCHEMISTRY OF THE PINEAL ORGAN IN THE SOCKEYE SALMON, ONCORHYNCHUS NERKA WALBAUM

Canadian Journal of Zoology, 1967
The morphohistology and some histochemical aspects of the pineal organ in the sockeye salmon were studied. The distal part of the organ lies in a pineal fossa in the cranial roof. Photosensory cells and two kinds of ependymal supporting cells are present throughout its epithelium, which is entirely devoid of either melanin or lipofuchsin.
M A, Hafeez, P, Ford
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Biogeographic Implications of Cytochrome b Sequences and Allozymes in Sockeye (Oncorhynchus nerka)

Journal of Heredity, 1995
Nucleotide sequence and restriction site analyses of the cytochrome b gene of mitochondrial DNA revealed three relatively common haplotypes among sockeye salmon (N = 80) from eight populations representing four major drainages from Kamchatka (Russia), Alaska, and British Columbia.
J W, Bickham, C C, Wood, J C, Patton
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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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The mate-guarding behaviour of male kokanee oncorhynchus nerka

Behaviour, 2002
AbstractThe patterns of mate-guarding in kokanee (non-anadromous Oncorhynchus nerka) are analysed and discussed in relation to existing theory of precopulatory mate-guarding. Male salmon typically guard females prior to spawning events and aggressively exclude other males from their vicinity.
openaire   +1 more source