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Description

Article written by Calvin R. Fremling regarding an experiment with specific toxicants and mayflies. Abstract: "A recycling test apparatus and burrow-containing artificial substrates were used to determine the toxicity of the lampricide 3-trifluoromethyl4-nitrophenol (TFM) against Hexagenia mayfly nymphs. Toxicity was relatively independent of temperature, but was greater in soft water than in hard water, and much greater at low than at high pH's; 12-h LC50's were 4.0 at pH 6.5 and 270.0 at pH 9.5." Published as part of a series: Investigations in Fish Control (issue 58) by the U.S. Fish and Wildlife Service (Department of the Interior). Part of the Cal R. Fremling Collection.

Publication Date

1975

Publisher

Library

City

Winona, Minnesota

Keywords

Biologists; Mayflies; Laboratory; Fish and Wildlife Service

Department

Special Collections-Library

Notes

1975

Unique Identifier

2011.003.0127

Rights Management

Requests to reproduce this image must be granted by the Winona County Historical Society.

Contributing Institution

Winona County History Center-Armory Museum

Acute toxicity of the lampricide 3-Trifluoromethyl-4-nitrophenol (TFM) to nymphs of mayflies (Hexagenia sp.)

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