Geology topics
S. F. Snieszko
Publications and source records attributed to S. F. Snieszko.
Immunization of fishes: A review
Immune response in fishes, which are ectothermic animals, depends on temperature. The optimum response is at the optimum temperature for the species. It is, however, slower in coldwater fishes, such as salmonids, and faster in warmwater fishes. Serum of fishes contains proteins very similar, but not identical, with those of mammals. Immune bodies are contained in gamma, beta, and alpha globulins. Gamma globulin is absent in some fishes. Fishes can be effectively immunized by injection of antigens, however, this is not a practical method. For this reason oral immunization has been attempted repeatedly but the effectiveness is variable.
Fin rot, coldwater disease, and peduncle disease of salmonid fishes
No abstract available at this time
Nutritional (dietary) gill disease and other less known gill diseases of freshwater fishes
No abstract available at this time
Selected fish disease publications in English
No abstract available at this time
Bacteria in blood and kidney of apparently healthy hatchery trout
Aseptic examination of blood and kidney material from three species of apparently healthy trout at two hatcheries showed that 12.5% of examined trout at one hatchery and 26.1% of trout at the other carried low numbers of bacteria. In addition, sera from these trout had agglutinins against some of the isolated bacteria and bacterial types found in trout were the same as those cultured from raceway water in which fish were raised. Although the presence of these bacteria does not constitute a disease state, the potential for an epizootic is present should trout be placed under stress conditions.
Thyroid hyperplasia of the eastern brook trout, Salvelinus fontinalis, in Romania
No abstract available.
Report of the Fish Disease Committee of the American Fisheries Society for the year 1967-1968
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Freshwater fish diseases caused by bacteria belonging to the genera Aeromonas and Pseudomonas
No abstract available at this time
Present status of federal and state government supported fish pathological research, teaching, and services in the United States of America
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Characteristics and identification of oxidative Pseudomonads isolated from diseased fish
Several characteristics of 20 strains of oxidative pseudomonads, all but one of which were isolated from freshwater fish, were determined. All strains oxidized glucose and gluconate, produced NH 3 from 1 % peptone, grew at 6, 12, 20 and 30° and produced cytochrome oxidase. Lipase was produced by 17 of the strains, while 15 produced gelatinase, and 16 produced fluorescent pigment. These and other characteristics used to identify fish-spoilage pseudomonads are also useful for identification of fish-pathogenic pseudomonads. Species determinations from the present data were not attempted. However, from previously published data on speciation of Pseudomonas , most of the 20 strains appeared to be closely related to or identical with P. fluorescens .
Nocardial infection in hatchery-reared fingerling rainbow trout (Salmo gairdneri)
No abstract available.
Pasteurella sp. from an epizootic of white perch (Roccus americanus) in Chesapeake Bay tidewater areas
No abstract available.
Remarks on some facets of epizootiology of bacterial fish diseases
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