Mycobacteria in adult salmonid fishes returning to national fish hatcheries in Washington, Oregon and California in 1958-59

A. J. Ross

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USGS · 70161787

Mycobacteria in adult salmonid fishes returning to national fish hatcheries in Washington, Oregon and California in 1958-59

A. J. Ross

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Abstract

Incidence of acid-fast bacillus infections in salmonid fishes at West Coast hatcheries was determined for 1957-59. No evidence was obtained which would indicate a definite trend towards either increased or decreased rates of infection. It is apparent that the incidence of infection is higher in hatchery-marked fish than in unmarked fish. Only one hatchery was found free of infection during the 3 years covered by the investigation. This installation had never used raw salmon products in diet.

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Source-reported bounding extent: 32.58384932565662° to 46.27103747280261° latitude; -124.5849609375° to -114.2578125° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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A. J. Ross. 1963. Mycobacteria in adult salmonid fishes returning to national fish hatcheries in Washington, Oregon and California in 1958-59. https://pubs.usgs.gov/publication/70161787

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