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: 41778
Some blood chemistry values for five Chesapeake Bay area fishes
Blood samples from gizzard shad,largemouth bass, white perch, pumpkinseed, and
toadfish were analyzed for hemoglobin, total plasma protein, total plasma cholesterol, and ion
concentrations of plasma sodium, potassium, and chloride. The hemoglobin concentration and total plasma cholesterol found in a given species seem to have positive correlation with the customary activity level of that species
Authors
J. B. Hunn, P.F. Robinson
In vivo uptake of radioiodide by rainbow trout
Abstract has not been submitted
Authors
J. B. Hunn, P.O. Fromm
Some effects of sublethal concentrations of sodium arsenite on bluegills and the aquatic environment
Bluegills were exposed to sodium arsenite at various concentrations and treatment frequencies in outdoor pools. The effects of the treatments on the fish and invertebrates in the pools were assessed. Applications totaling 4.0 ppm or more of NaAsO2 during the experiment were reflected in reduced survival and growth of the fish, with immature fish being affected to a greater degree than adults. Some
Authors
P.A. Gilderhus
Some aspects of breeding biology of the blue-winged teal
The Blue-winged Teal (Anas discors) was the subject of one of the first publications dealing with the breeding biology of a species of North American waterfowl (Bennett, 1938). Recent studies of the nesting chronology, clutch size, and incubation period of this species include the works of Hochbaum (1944), Sowls (1955), and Glover (1956). The present paper supplements information on these aspects
Authors
C.W. Dane
Progress in development of new wildlife research center
Abstract has not been submitted
Authors
H.K. Nelson
Review of - The giant Canada goose by Harold C. Hanson
Abstract has not been submitted
Authors
H.K. Nelson
Breeding ecology of the redhead duck in western Montana
The habits of the redhead duck (Aythya americana) were studied in the Flathead Valley of western Montana in 1960 and 1961 to determine their habitat preferences in this pothole breeding ground. The 2,600-acre study area, surrounding the Ninepipe Reservoir, contained 686 potholes. Redheads usually were paired by the time they arrived on the study area in March. The average density of redhead breedi
Authors
J. T. Lokemoen
Flexible plastic collars compared to nasal discs for marking geese
Construction of a flexible plastic collar for marking geese is described. The usefulness of the collars, tried on 468 Canada geese (Branta canadensis) at the Seney National Wildlife Refuge from 1963 to 1965, was compared with that of nasal discs attached to 361 Canada geese at Seney in 1961 and 1962. The collars were superior to the discs in visibility, retention, and ease of placement, and injury
Authors
G.A. Sherwood