Results 121 to 130 of about 2,740 (167)

Developmental changes in the pyruvate kinase isozymes of coho salmon

Journal of Experimental Zoology, 1979
AbstractPyruvate kinase exists as two major isozymes in coho salmon. As in mammals and birds, one form is present in the early embryo and maintains a wide tissue distribution in adults. This salmonid type K shows anodal migration during electrophoresis at pH 7.5.
H E, Guderley, J M, Cardenas
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Sublethal neurotoxicity of organophosphate insecticides to juvenile coho salmon

Aquatic Toxicology, 2020
For decades, organophosphate (OP) insecticides have been used as chemical control agents in watersheds that support at-risk populations of Pacific salmon throughout western North America. Spray drift, runoff, and other processes transport OPs to critical surface water habitats for migratory salmonids.
Cathy A, Laetz, David H, Baldwin, Nathaniel L, Scholz   +2 more
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Hepatic metallothionein and resistance to copper in juvenile coho salmon

Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1983
1. Four groups of 600 juvenile coho salmon (Oncorhynchus kisutch) of 3-8g body weight were exposed to sublethal concentrations of copper acetate in water of hardness 280 mg/l (as CaCO3). 2. Flow-through conditions were maintained for a period of 10 weeks, during which the copper concentrations to which the groups of fish were exposed were approximately
J A, McCarter, M, Roch
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Maximum Size of Chinook Salmon Consumed by Juvenile Coho Salmon

North American Journal of Fisheries Management, 1999
Abstract We evaluated predation of coho salmon Oncorhynchus kisutch on wild fall chinook salmon O. tshawytscha by conducting feeding trials in partitioned fiberglass troughs and in outdoor enclosures. Our goal was to determine the maximum size of fall chinook salmon that juvenile coho salmon could, or would attempt to, consume.
Todd N. Pearsons, Anthony L. Fritts
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Coho Salmon Smolts in Ninety Days

The Progressive Fish-Culturist, 1965
(1965). Coho Salmon Smolts in Ninety Days. The Progressive Fish-Culturist: Vol. 27, No. 4, pp. 219-220.
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Characterization of coho salmon (Oncorhynchus kisutch) islet somatostatins

General and Comparative Endocrinology, 1986
Three different somatostatins have been isolated from the pancreatic islet tissue of the coho salmon (Oncorhynchus kisutch) by gel filtration and HPLC. Two of these peptides contain 14 amino acids and the larger third peptide consists of 25 amino acids.
E M, Plisetskaya, H G, Pollock, J B, Rouse, J W, Hamilton, J R, Kimmel, P C, Andrews, A, Gorbman   +6 more
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Effects of ration on somatotropic hormones and growth in coho salmon

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2001
We examined the response of growth hormone (GH), total plasma insulin-like growth-factor I (IGF-I), and growth rate to a change in ration in coho salmon. Tanks of individually tagged fish were placed on high, medium, or low ration, and sampled every 2 weeks for 8 weeks to create a range of growth rates.
A L, Pierce, B R, Beckman, K D, Shearer, D A, Larsen, W W, Dickhoff   +4 more
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Embryotoxic action of methyl mercury on coho salmon embryos

Bulletin of Environmental Contamination and Toxicology, 1992
Environmental levels of heavy metals like mercury have increased significantly over the last 100 years in response to anthropogenic activities. More recently the increase in acid precipitation may make the situation worse in that it appears to increase the production of methyl mercury (MeHg) in the surface waters and benthic regions.
E W, Devlin, N K, Mottet
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Notes on the Life History of Coho Salmon

1983
This chapter provides an overview on migration and homing of salmon, sketches the principal developmental stages in the life cycle of coho salmon (Oncorhynchus kisutch), and presents the evidence for imprinting.
Arthur D. Hasler, Allan T. Scholz
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Replacement of Wild Coho Salmon by Hatchery-Reared Coho Salmon in the Strait of Georgia over the past Three Decades

North American Journal of Fisheries Management, 2003
Abstract The percentage of hatchery-reared coho salmon Oncorhynchus kisutch in the Strait of Georgia, British Columbia, increased from nearly 0% in the early 1970s to more than 70% by 2001. These estimates were derived from fin clip and coded wire tag data collected from commercial and sport fisheries, research surveys conducted in the summer and fall ...
R. M. Sweeting, R. J. Beamish, D. J. Noakes, C. M. Neville   +3 more
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