Results 181 to 190 of about 3,864 (223)

Flavobacteriosis in Coho Salmon (Oncorhynchus kisutch)

1980
Salmon production in Spain has been increasing during the past years. Geographical areas for these cultures are located in estuaries rich in phytoplankton and Zooplankton in North Spain. Most of the pathological problems are related to diseases already found in other countries. Among them vibriosis and kidney disease stand out (ACUIGRUP, 1977). Special
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Homing of coho salmon (Oncorhynchus kisutch) exposed to morpholine

Aquaculture, 1985
Abstract Smolts of coho salmon ( Oncorhynchus kisutch ) were exposed to 5 × 10 −5 mg·l −1 morpholine for 15 days and released into the Salmon River along with an unexposed control group. During the following two autumns, morpholine was introduced into the hatchery's fish ladder on various days and the return of experimental fish was recorded.
B.G. Rehnberg, L. Curtis, C.B. Schreck
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The multiple hemoglobins of coho salmon : Oncorhynchus kisutch

2011
Studies were conducted to determine the onto genetic changes in the number and relative concentration of the electrophoretically distinguishable hemoglobin polymorphs of coho salmon, Oncorhynchus kisutoh and the influence of certain environmental factors upon the expression of the hemoglobin variants.
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Primitive Neuroectodermal Neoplasia in Coho Salmon, Oncorhynchus kisutch

Veterinary Pathology, 2004
Twelve coho salmon, approximately 8 weeks old, were each observed to have a single neoplasm involving the dorsolateral axial skeletal musculature. The neoplasm was closely associated with the vertebrae in all cases. The neoplasm was composed of islands containing small cells with round and occasional spindeloid morphology.
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CHARACTERIZATION OF THE OVARIAN PROTEOME IN COHO SALMON (ONCORHYNCHUS KISUTCH)

2023
Considerable gaps exist in understanding the regulation of ovarian development in bony fishes. While much is known about the basic physiology of teleost reproduction during the later stages of oogenesis (process which includes yolk formation, maturation of the ovum, and its release into the ovary), little is known about the transition into puberty. The
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Smoltification induced by a ‘skeleton’ photoperiod in underyearling coho salmon (Oncorhynchus kisutch)

Fish Physiology and Biochemistry, 1989
Underyearling coho salmon fry were subjected to three initial photoperiod treatments (6L∶18D, 10L∶14D, 14L∶10D) for two months and subsequently to three final treatments (16L∶8D, 9L∶6D∶1L∶8D, 10L∶14D) in a factorial design. Growth rates and seawater adaptability were monitored regularly.
H, Thorarensen, W C, Clarke
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Effects of ionizing radiation on osmoregulation in fish Oncorhynchus kisutch

Comparative Biochemistry and Physiology, 1965
Abstract 1. 1. Decreased survival occured for juvenile coho salmon following doses of X-radiation ⩾ 1000 r when transferred from hypo-osmotic to a hyperosmotic environment (0%–30% salinity). 2. 2. Survivors which had remained in salt and fresh water 60 days post-irradiation were sacrificed for plasma sodium, chloride and osmotic ...
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Effects of petroleum exposure on predatory behavior of coho salmon (Oncorhynchus kisutch)

Bulletin of Environmental Contamination and Toxicology, 1981
Evaluations of the effects of petroleum on the indigenous marine fauna of Alaska's continental shelf regions are of continuing importance because of existing and proposed oil exploration activities in these areas. The purpose of the present study was to determine the influence of crude oil in seawater on salmonid predatory behavior.
L C, Folmar, D R, Craddock, J W, Blackwell, G, Joyce, H O, Hodgins   +4 more
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Osmotic regulation in juvenile Oncorhynchus kisutch (Walbaum)?II

Hydrobiologia, 1967
In a previous paper (COCHE, 1967), results concerning the salinity tolerance of coho salmon fry were presented. The present study deals with the ability of yearlings to dispose of the chloride they passively absorb when abruptly transferred from fresh to salt water . Coho salmons normally reside one year in the stream where they were born, the majority
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Ontogeny of the olfacto‐retinalis projection in coho salmon (Oncorhynchus kisutch)

Journal of Experimental Zoology, 1991
AbstractFilling of nucleus olfacto‐retinalis neurons by cobaltous lysine injections into one eye of coho salmon of different ages revealed that the terminal nerve projection to the retina is established when the fish leave their freshwater environment. At this time salmons go through a metamorphosis termed “smoltification”.
S O, Ebbesson, D L, Meyer, C R, Malz, G T, Bazer   +3 more
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