Toxicity of the lampricides 3-trifluoromethyl-4-nitrophenol (TFM) and 2',5-dichloro-4'-nitrosalicylanilide (Bayer 73) to eggs and nymphs of the mayfly (Hexagenia sp.)

Technical Report 47
By: , and 

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Abstract

Eggs and nymphs of mayflies (Hexagenia sp.) were exposed to the lampricides 3-trifluoromethyl-4- nitrophenol (TFM) and 2',5-dichloro-4'-nitrosalcylanilide (Bayer 73) and to a mixture of 98% TFM and 2% Bayer 73 (TFM-2B) to determine the sensitivity of various life stages to these compounds. Some eggs and newly hatched nymphs survived concentrations of TFM up to 10 mg/L; and nymphs of the other groups tested (7, 16, 23, and 27 mm long) died at concentrations of 5 mg/L or more. Eggs and nymphs were unaffected by Bayer 73 concentrations up to 0.4 mg/L, the highest concentrations tested.

Additional publication details

Publication type Report
Publication Subtype Other Report
Title Toxicity of the lampricides 3-trifluoromethyl-4-nitrophenol (TFM) and 2',5-dichloro-4'-nitrosalicylanilide (Bayer 73) to eggs and nymphs of the mayfly (Hexagenia sp.)
Series title Technical Report
Series number 47
Year Published 1985
Language English
Contributing office(s) Upper Midwest Environmental Sciences Center
Description 13-23
First page 13
Last page 23
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