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Publications

Below is a list of available WFRC peer reviewed and published science.

Filter Total Items: 2525

Coho salmon Oncorhynchus kisutch strain differences in disease resistance and non-specific immunity, following immersion challenges with Vibrio anguillarum Coho salmon Oncorhynchus kisutch strain differences in disease resistance and non-specific immunity, following immersion challenges with Vibrio anguillarum

Two strains of freshwater-reared coho salmon Oncorhynchus kisutch were compared for differences in the activity of selected non-specific immune factors before and after lethal and non-lethal immersion challenges with the marine bacterial pathogen Vibrio anguillarum (Vang). Two disease challenge experiments were performed. The first experimental challenge resulted in no mortality; however
Authors
Shannon K. Balfry, Alec G. Maule, George K. Iwama

Mortality and kidney histopathology of Chinook salmon Oncorhynchus tshawytscha exposed to virulent and attenuated Renibacterium salmoninarum strains Mortality and kidney histopathology of Chinook salmon Oncorhynchus tshawytscha exposed to virulent and attenuated Renibacterium salmoninarum strains

An isolate of Renibacterium salmoninarum (strain MT 239) exhibiting reduced virulence in rainbow trout Oncorhynchus mykiss was tested for its ability to cause bacterial kidney disease (BKD) in chinook salmon Oncorhynchus tshawytscha, a salmonid species more susceptible to BKD. Juvenile chinook salmon were exposed to either 33209, the American Type Culture Collection type strain of R...
Authors
Caroline L. O’Farrell, Diane G. Elliott, Marsha L. Landolt

Density, aggregation, and body size of northern pikeminnow preying on juvenile salmonids in a large river Density, aggregation, and body size of northern pikeminnow preying on juvenile salmonids in a large river

Predation by northern pikeminnow Ptychocheilus oregonensis on juvenile salmonids Oncorhynchus spp. occurred probably during brief feeding bouts since diets were either dominated by salmonids (>80% by weight), or contained other prey types and few salmonids (
Authors
J.H. Petersen

Early life history of the northern pikeminnow in the lower Columbia River basin Early life history of the northern pikeminnow in the lower Columbia River basin

The northern pikeminnow Ptychocheilus oregonensis is a large, native cyprinid in the Columbia River basin that has persisted in spite of substantial habitat alterations. During the months of June to September 1993-1996, we investigated the temporal and spatial patterns of northern pikeminnow spawning, along with describing larval drift and characterizing larval and early juvenile rearing...
Authors
D.M. Gadomski, C.A. Barfoot, J.M. Bayer, T.P. Poe

Evidence that coded-wire-tagging procedures can enhance transmission of Renibacterium salmoninarum in chinook salmon Evidence that coded-wire-tagging procedures can enhance transmission of Renibacterium salmoninarum in chinook salmon

Binary coded wire tags (CWTs) are used extensively for identification and management of anadromous salmonid populations. A study of bacterial kidney disease (BKD) in two brood year groups of hatchery-reared spring chinook salmon Oncorhynchus tshawytscha provided strong evidence that horizontal transmission of Renibacterium salmoninarum, the causative agent of BKD, might be enhanced by...
Authors
D.G. Elliott, R.J. Pascho
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