Development and evaluation of on-site toxicity test procedures for fishery investigations
Abstract not submitted to date
SEARCH · USGS Science
Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
Abstract not submitted to date
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.
Abstract not submitted to date
Abstract not submitted to date