Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41758
Advances in the studies on infectious fish diseases (Mimeograph)
No abstract available at this time
Authors
S. F. Snieszko
Sulfonamide toxicity in brook trout
Sterility was observed in female brook trout that were treated with sulfamerazine at frequent intervals for 2 years to control endemic furunculosis. Feeding sulfamerazine for a period of 8 months caused massive kidney damage similar to that observed in humans who develop allergies to “sulfa” drugs. Kidney damage of the type observed would probably cause renal insufficiency which would handicap any
Authors
E. M. Wood, W. T. Yasutake, S. F. Snieszko
Synthetic binding of trout diets
No abstract available.
Authors
E. M. Wood, P.J. Griffin, S. F. Snieszko
Introduction: Symposium research on fish diseases: a review of progress during the past 10 years
No abstract available.
Authors
S. F. Snieszko
Infectious diseases of Pacific salmon
Investigations on infectious diseases of Pacific salmon due to micro-organisms other than viruses are reviewed. The etiological agents include trematodes, fungi, protozoa and bacteria. Bacteria have been found to be the most important agents of disease in the several species of Pacific salmon. Kidney disease, due to a small, unnamed Gram-positive diplobacillus, causes serious mortalities in young
Authors
Robert R. Rucker, B. J. Earp, E. J. Ordal
A virus disease of sockeye salmon: Interim report
Since 1951 a disease, usually occurring in late spring or early summer, has caused severe losses in 3- to 12-month-old fingerling sockeye salmon in hatcheries in the State of Washington. The disease is characterized by an explosive outbreak, mortality usually 80 percent or greater, and a residual spinal deformity in a small percentage of the surviving fish, and its specificity for the one species
Authors
S.W. Watson, R.W. Guenther, R.R. Rucker
Virus diseases of fish
Viruses are probably the cause of a wide spectrum of fish diseases. Although relatively few virus diseases of fish are known today, some of the diseases of unknown etiology, as well as some diseases presently accepted as due to bacteria, protozoa, fungi or nutritional deficiencies, possibly will be recognized eventually as virus diseases.
Some viruses may induce proliferative tissue changes wherea
Authors
Stanley W. Watson
A comparative study of 28 culture media for Trichomonas gallinae
1. 1. A study was made of the ability of 28 different culture media to support growth of 5 strains of Trichomonas gallinae with their normally associated bacteria. A standard inoculum of 50 protozoa was used, and the cultures were incubated at 35 ?C. Based upon the number of positive cultures obtained, abundance of growth, and number of strains which grew in a given medium, the most satisfactory w
Authors
L. S. Diamond
Rodent repellents: Preparation and properties of thiouronium compounds and cyclic imides
Syntheses and bioassays of cyclic imides and thiouronium compounds were carried out as part of a search for materials capable of preventing rodent damage to packaged commodities. Previous studies had shown that repellent activity was associated with functional groups containing nitrogen and sulfur, and was enhanced by the presence of ionic linkages. Twenty-seven thiouronium compounds and 40 imi
Authors
E. Bellack, J.B. DeWitt