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.

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January 1, 1968

The administration of sulfonamide drugs to adult salmon

The artificial propagation of salmon starts with the capture of adults as they ascend rivers to spawn. After capture, they are retained in specially constructed holding areas until sexually mature. Though holding periods vary with species, the spring chinook (Oncorhynchus tshawytsca) may be held as long as 4 months before they are spawned. During this interval the fish are often closely confined a

Authors

D.F. Amend, J. L. Fryer

Ecosystems Mission Area, Western Fisheries Research Center

January 1, 1968

The changing seasons--the 1968 spring migration

No abstract available.

Authors

R. Andrews

Ecosystems Mission Area, Eastern Ecological Science Center

January 1, 1968

Sixty-eighth Christmas bird count. 272. Southern Dorchester County, Md

No abstract available.

Authors

D. R. Clark

Ecosystems Mission Area, Eastern Ecological Science Center

January 1, 1968

Reward banding to determine reporting rate of recovered mourning dove bands

Reward bands placed on the other leg of certain regularly banded immature mourning doves (Zenaidura macroura) were used to develop information on reporting rates of recovered dove bands. Reports from 15 widely separated sections of the United States showed considerable variation in recovery rate of doves both with and without reward bands. The overall percentages of banded doves that were reported

Authors

R. E. Tomlinson

Ecosystems Mission Area, Eastern Ecological Science Center

January 1, 1968