[Poisonous sting of various fish: Ictalurus nebulosus, Ictalurus catus. Research on the envenomization of wounds].

Short Communication:Effects of the addition of a marigold extract to diets fed to channel catfish (Ictalurus punctatus) on growth parameters

Epizootic papillomas in brown bullheads Ictalurus nebulosus from Silver Stream reservoir, New York

Fish from Silver Stream reservoir in Newburgh, New York (USA) were examined in 1985 and 1986 following reports by fishermen who had found a high prevalence of skin lesions in brown bullheads Ictalurus nebulosus caught in the reservoir Oral and skin papillomas were found in 43.2 % and 60.0 O/o of the brown bullheads from these respective samplings, whereas no papillomas were found in yellow bull...

Short Communication:Effects of the addition of a marigold extract to diets fed to channel catfish (Ictalurus punctatus) on growth parameters

Mortality and pathology in brown bullheads Amieurus nebulosus associated with a spontaneous Edwardsiella ictaluri outbreak under tank culture conditions.

Brown bullheads Amieurus nebulosus (family Ictaluridae) are commonly used as a sentinel of environmental contamination. These fish are not generally cultured under laboratory conditions and little is known about their disease susceptibility. Here we report an outbreak of disease due to Edwardsiella ictaluri in a laboratory population of tank-reared, wild-caught brown bullheads. The isolate was ...

Hepatic Neoplasms in Native Bottom-feeding Fish of Deep Creek Lake, Maryland.

are of current interest because of their high incidence in hatchery-grown trout (3, 6, 10, 15—18,21, 22) and because of indications that the cotton seed meal component of the hatchery diets contains the carcinogen (7, 21). The susceptibility of rainbow trout to dietary carcino gens could make that species useful as a detector of envir onmental carcinogens, but most rainbow trout popu lations ...