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: 41764
The marshes of Delaware, their improvement and preservation
No abstract available.
Authors
J.H. Steenis, N.G. Wilder, H.P. Cofer, R.A. Beck
Further investigations on winnowing method of measuring Wilson's snipe populations
No abstract available.
Authors
C.S. Robbins
An epizootic among rainbow trout
An epizootic among rainbow trout (Salmo gairdnerii) in a private trout farm, resulting from a species of Ichthyosporidium that caused very high mortality rates in all ages of trout, reported from the State of Washington.
Observations on gas-bubble disease of fish
SOME DIFFICULTY has been experienced in raising fry and young fingerlings at the Puyallup hatchery of the Washington State Department of Game, a hatchery now in its fourth year of operation. There has been evidence of gas in the yolk-sac fry, and the mortality was always excessive among the fingerlings while reared in the hatchery troughs. The mortality rate decreased and evidence of gas-bubble di
A contagious disease of salmon, possibly of virus origin
Production records for 1885, 1891–1908, and 1929–49, indicate cyclic fluctuations for several important species of fish. The average annual take (all species) of 3,582,000 pounds in 1929–49 was 3,503,000 pounds below the 1891–1908 mean of 7,085,000 pounds. Decline in the output of lake herring alone from 5,841,000 pounds in 1891–1908 to 1,070,000 pounds in 1929–49—a drop of 4,771,000 pounds—more t
Authors
R.R. Rucker, W.J. Whipple, J.R. Parvin, C.A. Evans
Fifty-third Christmas Bird Count. 142. Southern Dorchester County, Md
No abstract available.
Authors
G. J. Smith
Fifty-third Christmas Bird Count. Summary of highest counts of individuals
No abstract available.
Authors
C.S. Robbins