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: 41756
Blood parasites of the District of Columbia and Patuxent Refuge vicinity
No abstract available.
Authors
P.W. Wetmore
Notes on Costia Necatrix
Costiasis, or the disease produced by the flagellated protozoan ectoparasite, Costia necatrix, is of considerable importance in the artificial propagation of both warm- and cold-water fishes. In spite of its importance, costiasis seldom is accurately diagnosed probably because of the extremely small size and sedentary nature of the causative organism. A general resume of the specific diagnostic ch
Authors
F. F. Fish
Selected publications on waterfowl and gallinaceous gamebirds (with special reference to propagation and management)
No abstract available.
Authors
M. Katz
The preparation of blood smears and tissue impressions for laboratory study
No abstract available.
Authors
D.R. Coburn
Experiments upon the control of Trichodiniasis of salmonid fishes by the prolonged recirculation of formalin solutions
In a search for more effective disinfectants to combat parasitic diseases of hatchery fish, the authors report results from a series of experiments designed to determine the toxicity of varying exposures to concentrations of formalin, sodium p‐phenolsulphonate, ammonium sulphate, and sodium benzoate. Non‐toxic concentrations of these disinfectants were tested, in addition to the usual hatchery met
Authors
Frederic F. Fish, Roger E. Burrows
An evaluation of trout culture
In an evaluation of the efficiency of trout culture, the author presents a detailed analysis of complete loss records from 288 individual lots of trout at twenty-two hatcheries in the western United States. Summarized data are given to show the percentage loss of eggs, fry, and fingerlings by progressive one-half inch size groups. The accumulative percentage loss is also included to indicate the l
Formalin treatments pass new tests. Additional notes on the control of ecto-parasitic protozoa
After the completion of the eхреriments reported recently, in which the efficacy of formalin in controlling infections of Gostia mecatrix was demonstrated, the author was afforded an opportunity to test the value of formalin solutions in combatting established mixed infections of (Gyrodactylus, Tricbodina, Cyclochaeta) and a stalked protozoan on rainbow trout fingerlings. This opportunity was prov