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Bathymetric distribution of fish in lakes of the northeastern highlands, Wisconsin Bathymetric distribution of fish in lakes of the northeastern highlands, Wisconsin

The present study of the bathymetric distribution of fish in the lakes of northeastern Wisconsin has been based on records of the catches of gill nets fished during the summers of 1930, 1931 and 1932. During the first of the three summers, soundings were made only of the general area in which each gang of nets was fished. In 1931 and 1932, however, individual records were made of the...
Authors
Ralph Hile, Chancey Juday

Age, growth, and production of the yellow perch, Perca flavescens (Mitchill), of Saginaw Bay Age, growth, and production of the yellow perch, Perca flavescens (Mitchill), of Saginaw Bay

Ages were determined and individual growth histories computed from the examination and measurement of scales from 820 yellow perch collected in 1929 and 1930. Calculated lengths greater than 101 millimeters were computed on the assumption (supported by empirical data) that the ratio of body length to scale length is constant. Lengths below 101 millimeters were determined with the aid of...
Authors
Ralph Hile, Frank W. Jobes

Tagging experiments with lake trout, whitefish, and other species of fish from Lake Michigan Tagging experiments with lake trout, whitefish, and other species of fish from Lake Michigan

A total of 2,902 Lake Michigan fish was tagged and released, 48.8 per cent of which were lake trout and 85 per cent lake trout, lake herring, and whitefish. A total of 388 fish or 13.4 per cent was recaptured. The percentages of returns indicated a tremendous fishing intensity for lake trout, whitefish, and sturgeon. About 81 per cent of the recaptured fish were retaken within a radius...
Authors
Oliver H. Smith, John Van Oosten

The age, growth, and feeding habits of the whitefish Coregonus clupeaformis (Mitchell), of Lake Champlain The age, growth, and feeding habits of the whitefish Coregonus clupeaformis (Mitchell), of Lake Champlain

This study is based on 120 whitefish collected in northern Lake Champlain (Missisquoi Bay) in 1930 and on 175 whitefish taken in southern Lake Champlain in 1931. Since the whitefish population had not been exploited commercially after 1912 in United States waters and after 1915 in Canadian waters, its study should be of interest in showing the characteristics of a population practically...
Authors
John Van Oosten, Hilary J. Deason

The age, growth, sexual maturity, and sex ratio of the common whitefish, Coregonus clupeaformis (Mitchill), of Lake Huron The age, growth, sexual maturity, and sex ratio of the common whitefish, Coregonus clupeaformis (Mitchill), of Lake Huron

During five years (1939-43) of nutritional research on pen-reared bobwhite quail at the Patuxent Research Refuge, Bowie, Maryland, observations on picking among birds of all ages showed the following results: 1. Picking occurred on all grains tested: corn, wheat, oats, oat groats, barley, millet, buckwheat, kaffir, and mixtures of cereals. The lowest incidence was with buckwheat as the...
Authors
John Van Oosten

Save the Great Lakes fisheries! Save the Great Lakes fisheries!

During the winters of 1939-40 and 1940-41, two experiments involving 456 bobwhite quail, were conducted at the Patuxent Research Refuge, Bowie, Maryland, to determine the palatability and comparative feeding value of 20 common wild quail-foods when offered as a part of a maintenance diet....2. Mortality was low on all diets, the highest occurring on that containing a mixture of bayberry...
Authors
John Van Oosten
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