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: 41918
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
Calomel versus carbarsone
No parasite common to hatchery salmon and trout possesses quite so varied a reputation as does Octomitus salmonis. Discovered, studied, and described independently, but essentially simultaneously, by Dr. Emmeline Moore and Dr. H. S. Davis,
Octomitus salmonis was introduced to fish culture during the early twenties. This easily found and widely distributed parasite, once recognized, was soon held r
Authors
F. F. Fish, D.L. McKernan
Formalin for external protozoan parasites: A report on the prevention and control of Costia necatrix
The smallest and most destructive of the ectoparasitic protozoans infecting salmon and trout, Costia necatrix, has unfortunately been relegated to virtual obscurity during the past few years. Few references to this parasite can be found in the recent literature and, where such things are discussed, one seldom hears a mention of Costia necatrix.
This apparent lack of interest in Costia certainly do
Authors
Frederick S. Fisher
Birds as a factor in controlling insect depredations
No abstract available.
Authors
C. Cottam, F.M. Uhler
Traumatic autotransplantation of splenic tissue with a report on three cases in the dog
No abstract available.
Authors
W.H. Armstrong