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: 41771
The nutrition of salmonid fishes. I. Chemical and histological studies of wild and domestic fish.
The salmon fishing industry of the Pacific Coast is dependent on the survival and propagation of 5 species of salmon which spawn in rivers of that portion of the North American continent extending from California to Alaska. The development of these rivers for power, irrigation, flood control and other projects has drastically reduced the natural spawning areas available to salmon. To prevent the e
Authors
E. M. Wood, W. T. Yasutake, A.N. Woodall, J.E. Halver
Acute sulfamethazine toxicity in young salmon
Adverse effects from the medication of fish diseases with sulfonamides have been reported by several workers. A decreased growth rate (Gutsell and Snieszko 1949, Snieszko and Wood 1955), the production of drug resistant strains of pathogens (Snieszko 1952), sterility and kidney damage (Wood et al., 1955), and mortalities (Johnson and Brice 1953) have been described. Recently, increased mortalities
Authors
E. M. Wood, W. T. Yasutake, Harlan E. Johnson
The nutrition of salmonid fishes. II. Studies on production diets
The body composition of salmonids raised in hatcheries is markedly different, both chemically and histologically, from that of wild fish (Wood et al., '57). Differences between arti ficial and natural diets were suggested as important causative factors. Several workers have compared specific hatchery diets to a wide array of wild organisms which form the com ponents of wild diets (Embody and Gordo
Histopathology of fish. V. Gill disease
Possibly no single disease accounts for greater annual mortality than gill disease. Apparently endemic in many hatcheries, the disease is characterized by periodic sharp upsurges which are sometimes correlated with rising water temperatures, excessive foreign matter in the water (Wales and Evins 1937), or borderline nutritional conditions.
U.S. Federal fishery research on the Great Lakes through 1956
The major purpose of this publication is to present an annotated bibliography of papers resulting from Federal investigations on the Great Lakes fish and fisheries since the formal initiation of a continuing research program by the Fish and Wildlife Service. It is believed that this purpose can be served best by prefacing that bibliography with a brief account of the origins of Great Lakes Fishery
Authors
Ralph Hile
Note on the subpopulations of lake trout in the Great Lakes
No abstract available.
Authors
Paul H. Eschmeyer
The solubility of 3-bromo-4-nitrophenol in water and acetone
No abstract available.
Authors
B.R. Willeford
Biology of young lake trout (Salvelinus namaycush) in Lake Michigan
Experimental fishing with gill nets of 5 mesh sizes (2 3/8 to 3 inches) in Lake Michigan in 1930-32 yielded more than 16,000 young lake trout. Data are presented here on age, growth, length-weight relationship, abundance, geographical and bathymetric distribution, and other details of their biology.
Authors
John Van Oosten, Paul H. Eschmeyer
Recent concepts regarding the importance of game harvests as they affect population levels from year to year
No abstract available.
Authors
F.H. Dale
Lophortofilaria californiensis, N.G., N. Sp. (Filarioidea, Dipetalonematidae) from California quail, Lophortyx californicus, with notes on its microfilaria
A new genus and a new species of a filariod nematode, Lophortofilaria californiensis, from the California quail, Lophortyx californicus, has been described, with observations on periodicity of its microfilariae.
Authors
E.E. Wehr, C. M. Herman
Recent developments in wildlife disease studies in the Northeast
No abstract available.
Authors
C. M. Herman