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: 41772
Observations on the fulvous tree duck in Louisiana
The Fulvous Tree Duck is a locally common breeding bird of the rice fields of southwestern Louisiana. Observations made in 1955, 1956 and 1957, showed that this species was probably most abundant in the vicinity of Mamou, Evangeline Parish, and Roanoke, Jefferson Davis Parish. Tree ducks arrive in the rice country as the rice is planted in the spring and usually depart following fall harvest. A fe
Authors
B. Meanley, A.G. Meanley
Effects of certain chemicals on mucus-producing cells of Petromyzon marinus
Tissue samples that contained slime-secreting cells were taken from the gills and epidermis of larval lampreys that had been poisoned by several compounds. Histochemical treatment of these pathological tissues helped delineate the fate of these mucus-producing areas of the ammocetes. It was shown that the slime-secreting cells, located at the tips of the gill filaments, lining the gill chamber, an
Authors
Philip J. Sawyer
Burrowing activities of the larval lamprey
Since the appearance in 1950 of Applegate's work on the sea lamprey in Michigan (U. S. Fish and Wildl. Serv., Spec. Sci. Rept.; Fish, No. 55) and the subsequent development of means to control lampreys in the Great Lakes, biologists have accumulated much additional information on adult lampreys. Larval lampreys, however, are difficult animals to observe in the f
Authors
Philip J. Sawyer
The goldeye, Amphiodon alosoides (Rafinesque), in the commercial fishery of the Red Lakes Minnesota
Abstract has not been submitted
Authors
Marvin D. Grosslein, Lloyd L. Smith
Survival and retention of tags, and growth of tagged lake trout in a rearing pond
No abstract available.
Authors
Paul H. Eschmeyer
Fluctuations in the population of yellow perch, Perca flavescens(Mitchill), in Saginaw Bay Lake Huron
SUMMARY: The value of a line of traps as a measure of relative abundance of small mammals was studied by field trials on Peromyscus leucopus populations. Comparisons were made between the numbers of mice captured by a line of live traps and the numbers captured in intensive live trapping of a larger area surrounding the line. Trials were made in bottomland woods where mice were numerous and in
Authors
Salah El-Din El-Zarka
Fish mycobacteriosis (Tuberculosis)
The etiologic agent for the bacterial disease, "fish tuberculosis" (more correctly "mycobacteriosis"), was first observed in carp in 189& from a pond in France. Subsequently similar agents have been isolated from or observed in fish in fresh water, salt water, and brackish water, in fish in aquaria, hatcheries, and natural habitat~ (wild populations of fish). The disease has been recognized as an
Authors
T. J. Parisot, J.W. Wood
Sources of hydrographic and meteorological data on the Great Lakes
No abstract available.
Authors
Charles F. Powers, David L. Jones, John C. Ayers