Publications
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Life history of the spottail shiner (Notropis hudsonius) in southeastern Lake Michigan, the Kalamazoo River, and western Lake Erie
In southeastern Lake Michigan spottail shiners in samples ranged from ages 0 to V, but most were in age groups I-IV. In the Kalamazoo River (a tributary of southeastern Lake Michigan) age group II was commonest in the catches, and no fish older than age IV were sampled. In western Lake Erie, most shiners were in age groups 0-II, and none were older than age IV. Mortality of males was much higher t
Authors
LaRue Wells, Robert House
Control of the sea lamprey (Petromyzon marinus) in Lake Superior, 1953-70
The sea lamprey (Petromyzon marinus) gained entrance into Lake Superior in the early 1940's, and began making drastic inroads on the fish stocks by the early 1950's. Serious efforts to control the parasite began in 1953 with the installation of electrical barriers in streams to block spawning runs. Control measures became much more effective after 1958, when a selective toxicant, the lampricide 3-
Authors
Bernard R. Smith, J. James Tibbles, B. G. H. Johnson
Age, growth, sexual maturity, and food of channel catfish in central Lake Oahe, 1968-69
Channel catfish, Ictalurus punctatus, were collected with gill nets, trawl, and trap nets at three localities in Lake Oahe for the study of year-class strength, growth in length and weight, age composition, sexual maturity, and food. Fish were recruited to all the collection gears at age II. Relatively strong year classes were produced in 1962, 1965, and 1966. Youngest fish were captured in the up
Authors
Victor J. Starostka, William R. Nelson
A review of the literature on the use of Bayluscide in fisheries
In the United States Bayluscide has had multiple uses. The 70% wettable powder has been used in Puerto Rico for snail control and the 5% granular formulation has been tested in Michigan and Wisconsin against freshwater snails serving as inter mediate hosts of the trematode causing swimmers' itch. Bayluscide has also been used in field trials as a fish toxicant. Its most important use in North Amer
Authors
Sandra E. Hamilton
A review of the literature on the use of TFM-Bayluscide in fisheries
Since 1956 the Great Lakes Fishery Commission has been responsible for formulating and implementing a program to eradicate or control the sea lamprey in the Great Lakes. The U.S. Fish and Wildlife Service and the Sea Lamprey Control Centre of the Canadian Department of the Environment act as agents for the Commission in sea lamprey control. In the search for a selective lampricide that would contr
Authors
Sandra E. Hamilton
Predation by rainbow smelt (Osmerus mordax) on young-of-the-year alewives (Alosa pseudoharengus) in the Great Lakes
Although predation by rainbow smelt (Osmerus mordax) on young-of-the-year alewives (Alosa pseudoharengus) in the Great Lakes has long been suspected, evidence has been lacking. Young alewives were first noticed in the alimentary tracts of a few large smelt caught in northeastern Lake Ontario in September 1972. A more detailed examination of the stomach contents of smelt taken at various localiti
Authors
Robert O'Gorman
An elutriation apparatus for macroinvertebrates
An inexpensive hydropneumatic apparatus screens macroinvertebrates from bottom samples containing silt, mud, or clay. The elutriator, an acrylic cylinder with screened windows, cemented on an upright plastic funnel, retains benthic fauna while the sediment is washed away. The apparatus yields clean samples and has reduced the time required to sort benthos samples by more than 80%.
Authors
Joseph M. Worswick, Michael T. Barbour
Effect of acclimation temperature and heat shock on vulnerability of fry of lake whitefish (Coregonus clupeaformis) to predation
Fry of lake whitefish (Coregonus clupeaformis) acclimated to 10, 15, and 18 C were exposed to temperatures of 24.5, 25, and 28 C for 1 min and then immediately returned to water at their acclimation temperature, in test tanks containing yearling yellow perch (Perca flavescens). The number of attacks on the fry and the number captured and eaten in 30 min were recorded in separate tests of shocked a
Authors
Thomas G. Yocom, Thomas A. Edsall
Short-term fate of dietary dieldrin in the digestive tract of juvenile lake trout (Salvelinus namaycush)
Short-term fate of dietary dieldrin in the digestive tract of fishes is poorly known. Studies of the uptake, distribution, and elimination of chlorinated hydrocarbons have suggested that uptake or degradation is rapid in the intestine (GROSS 1969; MACEK et al. 1970; GRZENDA et al. 1970, 1971). The present study was designed to determine the short-term fate of a single oral dose of dieldrin in the
Authors
Donald J. Stewart, Roy A. Stein
Effect of temperature on accumulation of methylmercuric chloride and p,p'DDT by rainbow trout (Salmo gairdneri)
Amounts of mercury and DDT residues accumulated from water by yearling rainbow trout (Salmo gairdneri) in the laboratory increased as water temperature increased. Fish exposed to methylmercuric chloride at concentrations of 234–263 parts per trillion for 12 wk at 5, 10, and 15 C accumulated 1.19, 1.71, and 1.96 ppm; fish exposed to p,p′DDT at concentrations of 133–176 parts per trillion accumulate
Authors
Robert E. Reinert, Linda J. Stone, Wayne A. Willford
Dieldrin and DDT: accumulation from water and food by lake trout (Salvelinus namaycush) in the laboratory
In the laboratory we measured the amounts of dieldrin and p,p'DDT accumulated by fish from contaminated water and food to determine how fish from Lake Michigan accumulate high concentrations of these insecticides from an environment where the concentrations in water are generally less than 0.01 ppb. Eight groups of yearling lake trout (Salvelinus namaycush) were exposed to different combinations o
Authors
Robert E. Reinert, Linda J. Stone, Harold L. Bergman
Immature insects (Plecoptera, Trichoptera, and Ephemeroptera) collected from deep water in western Lake Superior
Five species of aquatic insects - two plecopterans, two trichopterans, and one ephemeropteran - usually found in streams or ponds were collected in water 32-100 m deep in western Lake Superior. All appear to be new records for the lake and all were collected from far greater depths than previously recorded for these forms.
Authors
James H. Selgeby