Geology topics
Publications and source records attributed to H. Wolf.
Whirling disease of trout, caused by Myxosoma cerebralis , was diagnosed in 1966 for the first time in rainbow trout ( Salmo gairdneri ) from California and Nevada hatcheries. In 1969 the first incidence of this disease in cutthroat trout ( S . clarki ) was reported in Nevada. To date these have been the only confirmed cases of whirling disease in western United States.
No abstract available
Fish pathology and its role in fish culture were brought into prominence in the spring of 1960 by the disclosure of a high incidence of hepatomas in hatchery-reared rainbow trout. The current problem came to light as the result of a routine inspection of live trout shipments at a California border fish-disease checking station. This service is performed by personnel of the California Department of Fish and Game to preclude the introduction or further spread of communicable fish diseases into California watersheds. Collaborative studies which followed revealed the nationwide distribution of the disease. This unusual disease soon attracted the attention of the Bureau of Sport Fisheries and Wildlife, the Food and Drug Administration, Public Health Service, and several western State health and conservation agencies.