Short-Term Toxicity of Seven Chemicals Using the Fathead MInnow, Pimephales promelas or the Cladoceran Ceriodaphnia dubia
Abstract
Seven-day acute renewal toxicity_ tests were conducted using the fathead minnow (Pimephales
promelas) or a cladoceran (Ceriodaphnia dubia) by exposing them to several concentrations of either
ammonia, aniline, methyl parathion, carbaryl, copper, lead or cadmium. The toxicity tests
generated median. lethal concentration values at various intervals of exposure and determined
concentrations of the chemicals producing negative effects on reproduction and growth. The tests
were conducted at the University of Wisconsin-Superior (UW S) testing facilities according to
procedures recommended by the American Society for Testing and Materials (ASTM 1993) and the U.S.
Environmental Protection Agency (EPA 1989).
Subject
short-term
toxicity
chemicals
Fathead Minnow
Pimephales Promelas
Cereiodaphnia dubia