This report describes the isolation of a new virus from adult
chum salmon (Oncorhynchus keta) returning to the Tokushibetsu Hatchery,
Hokkaido, Japan. The agent was isolated in the CHSE-214 cell line
derived from chinook salmon (Oncorhynchus tshawytscha). The virus
replicated in selected fish cell lines incubated between 10 and 20°C...
Chum salmon (Oncorhynchus keta) were artificially
infected with erythrocytic necrosis virus (ENV) to study
the physiological and hematolgical consequences of ENV-infection.
Infected and control fish were held in
pathogen-free seawater and sampled weekly for five weeks.
Physiological tests included plasma cortisol, glucose,
protein, and osmolality, blood lactic acid, and liver...
The primary objective of this study was to identify
and investigate the underlying basis for variation in the
volume of exports of Canadian chum salmon during 1954-1975
period. A number of factors thought to be of importance
in the determination of the volume of exports of chum
salmon were hypothesized....
The effects of temperature and ration on growth, food consumption, and food conversion efficiency of chum salmon, Oncorhynchus keta, in sea water were studied in two experiments conducted during the spring, summer, and fall, 1973, at the Oregon State University Marine Science Center, Newport, Oregon. The test temperatures
Within the tested range of 1000 - 7000 eyed eggs/ft² gravel substrate (1.08 - 7.53 eggs/cm²), the optimum stocking density for chum salmon (Oncorhynchus keta) eggs in shallow matrix substrate incubators occurred at 3000 - 4000 eggs/ft². Premature fry, which predominated early emergence, showed greater variability in lipid content than...
Effects of the marine environment on age and size at maturity, early marine growth, and abundance of chum salmon, Oncorhynchus keta, were studied at Olsen Creek during 1959-77. Chum salmon returned to Olsen Creek as predominately 3-, 4-, and 5-year fish; however, age composition varied from year to year. The...
Chum salmon from different stocks were bred together in two experiments. Three stocks contributed gametes to one experiment, two stocks to another. Sibling groups of eggs, alevins, and fry were maintained in a common environment. Variability of development rates, rearing performance, susceptibility to disease, and behavioral traits was partitioned into...
Estuarine residence and growth of juvenile chum salmon
(Oncorhynchus keta) from Netarts Bay, Oregon were estimated
from daily-formed growth increments of sagittal otoliths
which are distinguishable from accretion patterns formed
during freshwater residence. Estuarine residence time was
inversely related to the average size at which juvenile chum
salmon entered Netarts...