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: 41756
The movement of tagged lake trout in Lake Superior, 1950-52
A total of 733 native lake trout was tagged at two widely separated localities in Lake Superior; subsequent recaptures numbered 155 fish (21.1 percent) during the year following marking. In October 1950, 116 large lake trout (average total length, 27.3 inches) were tagged near Keweenaw Point, Michigan. Fifteen (12.9 percent) were recovered during the first year at points as far west as the Goose
Authors
Paul H. Eschmeyer, Russell Daly, Leo F. Erkkila
Movement of tagged lake trout in Lake Superior, 1950-1952
A total of 733 native lake trout was tagged at two widely separated localities in Lake Superior; subsequent recaptures numbered 155 fish (21.1 percent) during the year following marking. In October 1950, 116 large lake trout (average total length, 27.3 inches) were tagged near Keweenaw Point, Michigan. Fifteen (12.9 percent) were recovered during the first year at points as far west as the Goose
Authors
Paul H. Eschmeyer, Russell Daly, Leo F. Erkkila
The effect of ether anesthesia on fin-clipping rate
As part of an experimental program to learn the effects of stocking lake trout (Salvelinus namaycush) in Lake Superior, 141, 392 fingerlings were marked at the Charlevoix (Michigan) Station of the U.S. Fish and Wildlife Service in October 1952. The adipose fin was removed from all fish, the right pelvic from the remainder. A random sample of 2, 417 of the fish showed an average total length of 4.0
Authors
Paul H. Eschmeyer
Fluctuations in the fisheries of State of Michigan waters of Green Bay
Green Bay, traditionally a major center of production, has assumed in recent years a position of overwhelming dominance in the commercial fisheries of the State of Michigan waters of Lake Michigan. Within the 4-year period 1945-1948 the commercial take in State of Michigan waters of Green Bay increased from 3,317,000 pounds in 1945 to 7,909,000 pounds in 1948, and it was 7,782,000 poinds in 1949.
Authors
Ralph Hile, George F. Lunger, Howard J. Buettner
Directing the movement of fish with electricity
No abstract available.
Authors
Alberton L. McLain, Willis L. Nielsen
Sea lamprey spawning: Wisconsin and Minnesota streams of Lake Superior
No abstract available.
Authors
Howard A. Loeb
The foods of fur animals of the Patuxent Research Refuge, Maryland
Approximately 300 digestive tracts of fur animals obtained mostly during the winter trapping season and 560 scats from animals live-trapped on the Patuxent Research Refuge near Laurel, Maryland, were analyzed. The resulting data are summarized and a brief description of the area and important habitat types is given. The animals studied include the raccoon, red fox, gray fox, mink, New York weasel,
Authors
L. M. Llewellyn, Francis M. Uhler
Ecological studies of breeding bird populations in northern Maine
No abstract available.
Authors
Robert E. Stewart, John W. Aldrich
Fifty-second Christmas Bird Count. 138. Southern Dorchester County, Md
No abstract available.
Authors
C.S. Robbins