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January 1, 1962

Collection and analysis of commercial fishery statistics in the Great Lakes Collection and analysis of commercial fishery statistics in the Great Lakes

No abstract available.

Authors

Ralph Hile

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1962

Quantitative sampling with the orange-peel dredge Quantitative sampling with the orange-peel dredge

Abstract has not been submitted

Authors

James W. Merna

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1962

Distribution and seasonal movements of Saginaw Bay fishes Distribution and seasonal movements of Saginaw Bay fishes

No abstract available.

Authors

Ira A. Carr

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1962

Comparative toxicity of 3-trifluormethyl-4-nitrophenol (TFM) to larval lampreys and eleven species of fishes Comparative toxicity of 3-trifluormethyl-4-nitrophenol (TFM) to larval lampreys and eleven species of fishes

The tolerances of larval lampreys, rainbow trout, and 10 species of warmwater fishes to 3-trifluormethyl-4-nitrophenol (TFM), a selective lamprey larvicide, were determined in three dilution waters of different physical and chemical characteristics. Differential toxic effects of the chemical to larval lampreys and test fishes varied broadly with the species of fish. Smallmouth bass and...

Authors

Vernon C. Applegate, Everett L. King

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1962

A photoelectric amplifier as a dye detector A photoelectric amplifier as a dye detector

A dye detector, based on a modified photoelectric amplifier, has been planned, built, and tested. It was designed to record automatically the time of arrival of fluorescein dye at predetermined points in a stream system. Laboratory tests and stream trials proved the instrument to be efficient. Small changes in color can be detected in turbid or clear water. The unit has been used...

Authors

Wesley J. Ebel

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1962

Lake Erie or Lake Eerie? Lake Erie or Lake Eerie?

Abstract has not been submitted

Authors

Stanford H. Smith

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1962

Exposure of several developmental stages of the sea lamprey, Petromyzon marinus to selective larvicides Exposure of several developmental stages of the sea lamprey, Petromyzon marinus to selective larvicides

No abstract available.

Authors

George W. Piavis

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1961

Relative growth of fins in the fourhorn sculpin, Myoxocephalus quadricornis, from the upper Great Lakes Relative growth of fins in the fourhorn sculpin, Myoxocephalus quadricornis, from the upper Great Lakes

Livers of 445 wild bobwhites taken in Iowa, Wisconsin, and Illinois in late fall and winter of 1947-48 were assayed for vitamin A. All contained vitamin A; but the amount in many was so low that it is estimated that 4% of the birds would have died directly from lack of vitamin A within 3 weeks or that as much as 42% might have been affected enough to make them die from predation and...

Authors

Carl Jacoby

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1961

Environmental changes in Lake Erie Environmental changes in Lake Erie

Comparison of data compiled during the past 60 years with those from recent studies shows that major changes have occurred in the bottom and fish faunas of Lake Erie. The bottom fauna was formerly dominated by the nymphs of Hexagenia, but at present midge larvae and oligochaetes are most abundant. Blue pike (Stizostedion vitreum glaucum) and cisco (Coregonus artedii), which formerly...

Authors

Alfred M. Beeton

Ecosystems Mission Area, Great Lakes Science Center

January 1, 1961