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Heritable reproductive effects of benzo[a]pyrene on the fathead minnow (Pimephales promelas)

✍ Scribed by Paul A. White; Sophie Robitaille; Joseph B. Rasmussen

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
60 KB
Volume
18
Category
Article
ISSN
0730-7268

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✦ Synopsis

Abstract

Environmental toxicologists rarely investigate multigeneration effects of aquatic contaminants. In this study we investigated the survivorship of fathead minnow larvae two generations removed from an exposure to the potent mutagen benzo[a]pyrene. The F2 broods with a grandparental exposure history showed a marked decrease in survival. In the highest‐exposure group, reproductive capacity and larval survivorship were significantly lower than the solvent control.

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## Abstract Nonylphenol ethoxylates (NPEOs) were evaluated in the laboratory for potential effects on the reproductive physiology and fecundity of fathead minnows (__Pimephales promelas__). Groups of three adult male and three female fathead minnows were exposed in a continuous flow‐through system