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: 41763
Parasites of freshwater fishes IV, Miscellaneous, The anchor worm (Lernaea cyprinacea) and related species
No abstract available.
Authors
R.E. Putz, J.T. Bowen
Parasites of freshwater fishes, II, Protozoa, 1, Microsporida of fishes
No abstract available.
Authors
R.E. Putz
Basic list of publications in English on fish diseases and parasites
No abstract available.
Authors
S. F. Snieszko, G. L. Hoffman, K. Wolf
Chemical characteristics of south-central Lake Huron
Water samples were collected for chemical analysis during eight cruises of the U.S. Bureau of Commercial Fisheries M/V CISCO in south-central Lake Huron in June-October 1956. Temperature, pH, conductivity, and the concentrations of Na+, K+, Ca++, C1-, SO4-, SiO2, and dissolved oxygen were determined for 233 samples from stations at the mouth of Saginaw Bay and along a transect from Harbor Beach, M
Authors
Herbert E. Allen
Insecticides: effects on cutthroat trout of repeated exposure to DDT
Cutthroat trout were periodically exposed to p, pp-DDT, in acetone solution or in the food. Excessive mortality occurred only in lots treated with high concentrations of DDT, probably as a result of decreased resistance to nonspecific stressors. Surviving fish in these lots were significantly larger than those in the control lot, or in the lots treated with low concentrations of DDT. The number an
Authors
Don Allison, Burton J. Kallman, Oliver B. Cope, Charles C. Van Valin
Reductive dechlorination of DDT to DDD by yeast
Labeled DDD [ 1,1-dichlor-o-2,2-bis(p-chlorophenyl)-ethane] was formed from C14-labeled DDT in the presence of yeast. The formation of DDD from DDE [1,1-dichloro-2,2-bis (p-chlorophenyl)-ethylene] was not observed, indicating that a reductive dechlorination of DDT occurs.
Authors
Burton J. Kallman, Austin K. Andrews
In vitro culture of the flagellate protozoan Hexamita salmonis
Trophozoites of Hexamita salmonis, asserted pathogen of juvenile salmonid fishes, were isolated from two species of Pacific salmon hosts and cultured repeatedly in an organic medium saturated with nitrogen. Primary isolates and serial subcultures usually exhibited five- to tenfold population increases per passage.
Authors
J. R. Uzmann, S.H. Hayduk
The Hexamita(= Octomitus) problem: A preliminary report
THE INTESTINAL FLAGELLATE, Hexamita salmonis (Moore), was described in 1922 from trout in hatcheries throughout New York State. At first associated with the so-called whirling disease of brook trout (Salvelinus fontinalis), now believed to be a virus disease, Hexamita was subsequently held responsible for practically any otherwise unexplainable mortality in underyearling salmonids. Over the years,
Authors
J. R. Uzmann, J.W. Jesse