Publications
USGS divers in the Elwha River
WFRC zebrafish laboratory
Processing a Lost River sucker
Below is a list of available WFRC peer reviewed and published science.
Filter Total Items: 2475
Immersion vaccination of sockeye salmon (Oncorhynchus nerka) with two pathogenic strains of Vibrio anguillarum
Sockeye salmon (Oncorhynchus nerka) were immersion-vaccinated in suspensions containing 5 × 107, 5 × 106, 5 × 105, or 5 × 104 bacteria/mL of bivalent or monovalent, formalin-killedVibrio anguillarum, Types I and II. The fish were split into two lots and held for 54 d. At that time one lot was challenged with living, virulent V. anguillarum, Type I, and one with living, virulent V.anguillarum, Type
Authors
R. W. Gould, R. Antipa, D.F. Amend
Artificial transmission to and susceptibility of Puget Sound fish to viral erythrocytic necrosis (VEN)
In Puget Sound, Wash., the incidence of viral erythrocytic necrosis (VEN) varied geographically from 0 to 17% in chum salmon (Oncorhynchus keta) and from 4 to 59% in Pacific herring (Clupea harengus pallasi). The disease was experimentally transmitted by intraperitoneal injection to chum, pink (O. gorbuscha), coho (O. kisutch), chinook (O. tshawytscha), sockeye (O. nerka), and Atlantic (Salmo sala
Authors
John R. MacMillian, Dan Mulcahy
Physiological and biochemical aspects of ozone toxicity to rainbow trout (Salmo gairdneri)
An acute toxicity curve for dissolved ozone (O3) in soft water at 10 °C, using 10–13-cm rainbow trout (Salmo gairdneri) as the test species was calculated. The 96-h LC50 (95%, confidence interval) was 9.3 (8.1–10.6) μg/L. The lethal threshold level was about 8 μg/L mandating that a conservative margin of safety be used if ozone is employed as a fish disease control agent. Death apparently results
Authors
Gary A. Wedemeyer, Nancy C. Nelson, William T. Yasutake
Potentials and limits for the use of ozone as a fish disease control agent
Ozone and chlorine inactivation curves were determined in three types of freshwater at 20 C for the destruction of the fish pathogens Aeromonas salmonicida the etiologic agent of furunculosis, and Yersinia ruckeri the enteric redmouth bacterium (ERM). Ozone and chlorine inactivation curves were also obtained in the same water types at 10 C for the fish pathogenic viruses infectious hematopoietic n
Authors
Gary A. Wedemeyer, Nancy C. Nelson, Wm. T. Yasutake
Pen-rearing of silver salmon (Oncorhynchus kisutch) in San Francisco Bay
No abstract available
Authors
S.D. Smith
Resistance of different stocks and transferrin genotypes of coho salmon, Oncorhynchus kisutch, and steelhead trout, Salmo gairdneri, to bacterial kidney disease and vibriosis
Juvenile coho salmon and steelhead trout ofdifferentstocks and three transferrin genotypes(AA, AC, and CCl, all reared in identical or similar environments, were experimentally infected with Corynebacterium sp., the causative agent ofbacterial kidney disease, or with Vibrio anguillarum, the causative agent of vibriosis. Mortality due to the pathogens was compared among stocks within a species and
Authors
Gary W. Winter, Carl B. Schreck, John D. McIntyre
An erythroleukemic-like disease in fish
No abstract available
Authors
J.R. MacMillan, M. Landolt, D. Mulcahy
Histochemistry of leucine aminoaphthylamidase (LAN) in rainbow trout (Salmo gairdneri)
The histochemistry of leucine aminonaphthylamidase (LAN) was studied in frozen tissue sections of rainbow trout both in yearling and adult fish. Age of fish had relatively little effect upon the results. The most intense LAN color production was in epithelial cells of midgut, pyloric ceca, hindgut, and in some segments of kidney tubules. Lower levels of LAN were evident in liver cells of Kupffer,
Authors
Gerald R. Bouck
Efficacy of certain disinfectants against infectious pancreatic necrosis virus
The virucidal properties of iodophor, chlorine (sodium hypochlorite), formalin, thimerosal (organic mercurial compound), malachite green, and acriflavine were tested on infectious pancreatic necrosis virus (IPNV). Iodine and chlorine showed good activity, but efficacy depended on the concentration of virus, the presence of organic matter (calf serum), and water pH. Water hardness (0-300 mg 1−1 as
Authors
Diane G. Elliott, Donald F. Amend
Implications of water management and Lake Oahe for the spawning success of coolwater fishes
No abstract available
Authors
W.R. Nelson
Effect of capture stress on plasma enzyme activities in rainbow trout (Salmo gairdneri)
Four capture methods were used to collect domesticated rainbow trout (Salmo gairdneri): angling, electroshocking, seining, and direct netting (control). Blood was sampled rapidly upon capture, usually within 2 min. No significant differences were noted within the time frame of the experiment between the four capture groups for plasma protein concentration, lactate dehydrogenase activity, or leucin
Authors
G.R. Bouck, M. A. Cairns, A. R. Christian
Yersinia ruckeri sp. nov., the redmouth (RM) bacterium
Cultures of the redmouth (RM) bacterium, one of the etiological agents of redmouth disease in rainbow trout (Salmo gairdneri) and certain other fishes, were characterized by means of their biochemical reactions, by deoxyribonucleic acid (DNA) hybridization, and by determination of guanine-plus-cytosine (G+C) ratios in DNA. The DNA relatedness studies confirmed the fact that the RM bacteria are mem
Authors
W.H. Ewing, A. J. Ross, Don J. Brenner, G. R. Fanning