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: 2562
Distribution and biology of Indo-Pacific insular hypogeal shrimps Distribution and biology of Indo-Pacific insular hypogeal shrimps
Ten species of caridean shrimps, representing nine genera in five families, have been found in exposures of the marine water table at 28 islands from Hawaii to the western Indian Ocean. Synthesis of literature information and personal observations indicate that, as a group, these shrimps are characterized by red body pigment, reduced but pigmented eyes, euryhalinity, a proclivity for...
Authors
J. A. Maciolek
Retention of infectious haematopoietic necrosis virus infectivity in fish tissue homogenates and fluids stored at three temperatures. Retention of infectious haematopoietic necrosis virus infectivity in fish tissue homogenates and fluids stored at three temperatures.
Pools of brain, kidney, spleen, liver and gut tissues from several rainbow trout, Salmo gairdneri Richardson, and whole sockeye salmon, Oncorhynchus nerka (Walbaum), fry were homogenized with a known amount of infectious haematopoietic necrosis virus (IHNV). Virus was also added to ovarian fluids and sera pooled from several rainbow trout. The plaque assay was used to determine the...
Authors
J. Burke, D. Mulcahy
Feeding activity, rate of consumption, daily ration and prey selection of major predators in the John Day Pool Feeding activity, rate of consumption, daily ration and prey selection of major predators in the John Day Pool
No abstract available
Authors
G.A. Gray, D.E. Palmer, B.L. Hilton, P.J. Connolly, H.C. Hansel, J.M. Beyer, G.M. Sonnevil
Some potentials and limits of the leucocrit test as a fish health assessment method Some potentials and limits of the leucocrit test as a fish health assessment method
The sensitivity of the leucocrit as a stress tolerance and fish health assessment method was evaluated by subjecting juvenile coho salmon, Oncorhynchus kisutch, or steelhead trout, Salmo gairdneri, to standardized crowding, handling, temperature and disease challenges. The leucocrit was a sensitive indicator of the physiological stress resulting from crowding at population densities of 0...
Authors
Gary Wedemeyer, R. W. Gould, W. T. Yasutake
Serological comparison of selected isolates of Aeromonas salmonicida ssp. Salmonicida Serological comparison of selected isolates of Aeromonas salmonicida ssp. Salmonicida
Eight isolates of Acronionus salmonicida ssp. salmonicida were collected during furunculosis epizootics in North American Pacific coast states and provinces. Both virulent and avirulent forms of each isolate, confirmed by challenge and electron microscopy, were examined. Serological comparisons by cross-absorption agglutination tests revealed no serological differences between isolates...
Authors
G.B. Hahnel, R. W. Gould, E.S. Boatman
Lakes and lake-like waters of the Hawaiian Archipelago Lakes and lake-like waters of the Hawaiian Archipelago
This summary of Hawaiian lacustrine limnology is based on 12 years of field and literature surveys of archipelagic inland waters. Lakes here are distinguished from other standing waters by limits on surface oceanic area (> 0.1 ha) and depth (> 2 m), and by the absence of flatural surface oceanic connection. A variety of extinct and existing water bodies, sometimes referred to as lakes...
Authors
J. A. Maciolek
Communal roosting in the Hooded Merganser Communal roosting in the Hooded Merganser
No abstract available.
Authors
D.B. Barbour, A.R. DeGange
Effects of temperature on biochemical reactions and drug resistance of virulent and avirulent Aeromonas salmonicida Effects of temperature on biochemical reactions and drug resistance of virulent and avirulent Aeromonas salmonicida
Incubation temperatures of 11°, 18° and 28° did not substantially affect biochemical reactions of either virulent or avirulent forms of Aeromonas salmonicida subspecies salmonicida. The only change observed, amygdalin fermentation, was positive at 11° and 18° but negative at 28°C. Several isolates utilized sucrose, a characteristic not normally recognized for A. salmonicida subspecies...
Authors
G.B. Hahnel, R. W. Gould
Reciprocal allopreening in the Brownheaded Nuthatch Reciprocal allopreening in the Brownheaded Nuthatch
In his extensive reviews of allopreening, Harrison (1965, 1969) did not record this behavior for the Sittidae, nor did Kilham (1968, 1972, 1973) mention observing this behavior in either White-breasted (Sitta carolinensis) or Red-breasted (S. canadensis) nuthatches. Norris (1958: 187), however, mentioned the occurrence of allopreening in Brown-headed Nuthatches (S. pusilia), in passing...
Authors
D.B. Barbour, A.R. DeGange
Predation on seabirds by red foxes at Shaiak Island, Alaska Predation on seabirds by red foxes at Shaiak Island, Alaska
Two Red Foxes (Vulpes fulva) that invaded Shaiak Island before the 1976 nesting season had a marked impact on the nesting success of five of seven species of seabirds breeding on the island that year. Common Eiders (Somateria mollissima), Glaucous-winged Gulls (Larus glaucescens), and Common Murres (Uria aalge), that nest in areas accessible to foxes, did not raise any young to fledging...
Authors
Margaret R. Petersen
Breeding ecology of the black turnstones: a study in behavior and energetics Breeding ecology of the black turnstones: a study in behavior and energetics
No abstract available
Authors
Colleen M. Handel
Relation between size of Chinook salmon, Oncorhynchus tshawytscha, released at hatcheries and returns to hatcheries and ocean fisheries Relation between size of Chinook salmon, Oncorhynchus tshawytscha, released at hatcheries and returns to hatcheries and ocean fisheries
No abstract available
Authors
R.R. Reisenbichler, J.D. McIntyre, R.J. Hallock