Publications
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Downstream movement of lampreys and fish in the Carp Lake River, Michigan Downstream movement of lampreys and fish in the Carp Lake River, Michigan
An inclined-screen trap was installed on the Carp River, Emmett County, Michigan, in the spring of 1948 and has been in almost continuous operation since that time. The major goal of this project--a precise determination of the length of the larval life of sea lamprey--was not attained because of the contamination of the stream above the dam with spawning lampreys. The lampreys and other...
Authors
Vernon C. Applegate
Records, ages, and growth of the mooneye, Hiodon tergisus, of the Great Lakes Records, ages, and growth of the mooneye, Hiodon tergisus, of the Great Lakes
Mooneyes (Hiodon tergisus) are very scarce in the upper three Great Lakes since only four specimens have been received from Lake Michigan, one from Lake Huron, and none from Lake Superior. The published statistics of the mooneyes are erroneous. Those of 1931 of Lake Michigan were perhaps chubs (Coregonus spp.) and those of Lake Huron of 1929 were also chubs and of 1934, 1949, and 1951...
Authors
John Van Oosten
Recent changes in the walleye fishery of northern Green Bay and history of the 1943 year class Recent changes in the walleye fishery of northern Green Bay and history of the 1943 year class
Production, fishing intensity, and availability of walleyes (Stizostedion vitreum vitreum) fluctuated widely in the commercial fishery of northern Green Bay in 1929-57. The catch ranged from 16,000 pounds (8 percent of average for the 1929-53 base period) in 1942 to 1,294,000 pounds (633 percent) in 1950. The index of fishing intensity ranged from 17 (1941) to 400 (1950) and that of...
Authors
Richard L. Pycha
Use of 3-trifluormethyl-4-nitrophenol as a selective sea lamprey larvicide Use of 3-trifluormethyl-4-nitrophenol as a selective sea lamprey larvicide
The recent discovery of a group of chemical compounds that are significantly more toxic to sea lampreys than to other aquatic organisms offers promise of an early and effective control of this pest. The sea lamprey has all but destroyed the lake trout populations of Lakes Huron and Michigan. In Lake Superior, production of the lake trout fishery has declined to record low levels. Only a...
Authors
Vernon C. Applegate, John H. Howell, James W. Moffett, B. G. H. Johnson, Manning A. Smith
The hydrography of Saginaw Bay The hydrography of Saginaw Bay
No abstract available.
Authors
Alfred M. Beeton, Frank F. Hooper
Formation of an accessory annulus on the scales of starved whitefish Formation of an accessory annulus on the scales of starved whitefish
No abstract available.
Authors
John Van Oosten
Embryological stages in the sea lamprey and effects of temperature on development Embryological stages in the sea lamprey and effects of temperature on development
Abstract has not been submitted
Authors
George W. Piavis
Food of the American smelt in Saginaw Bay, Lake Huron Food of the American smelt in Saginaw Bay, Lake Huron
In order to determine possible sources of vitamin A for quail, 37 species of insects and other invertebrates were analyzed for vitamin A and for carotene, and 26 species of seeds and fruits were assayed for carotene. The invertebrates showed no trace of vitamin A; but 8 herbivorous invertebrates and the praying mantis contained carotene. Most of the plants contained carotene--some of...
Authors
William G. Gordon
Recoveries of tagged, hatchery-reared lake trout from Lake Superior Recoveries of tagged, hatchery-reared lake trout from Lake Superior
Plantings that totaled 13,384 tagged, hatchery-reared lake trout (Salvelinus namaycush)—18, 25, 30, or 37 months old—were made at four Lake Superior localities in 1955-57 to: measure possible increases of return from rearing to greater size and age; study the effect of season of planting on the rate of return; compare returns from different types of tags; and follow the movements of...
Authors
Howard J. Buettner
A back-pack shocker for collecting lamprey ammocoetes A back-pack shocker for collecting lamprey ammocoetes
IN 1958, THE BUREAU OF COMMERCIAL FISHERIES began to use specific larvicides for sea lamprey control in streams tributary to the Great Lakes. The successful application of larvicides required treatment of all areas of the streams infested by sea lamprey ammocoetes. Intensive surveys were needed to determine distribution of the larvae. The use of electrical methods to determinelarval...
Authors
Robert A. Braem, Wesley J. Ebel
Factors related to commercial production of the walleye in Red Lakes, Minnesota Factors related to commercial production of the walleye in Red Lakes, Minnesota
Growth of the walleye (Stizostedion vitreum vitreum) in Red Lakes, Minnesota, over a 17-year period was slower than in other waters of the Great Lakes region and fluctuated annually from 30.7 percent above to 42.2 percent below mean growth. Individual year classes varied considerably in growth rate. Age distribution in 3 1/2-inch stretch-measure commercial nets varied extremely in 9...
Authors
Lloyd L. Smith, Richard L. Pycha