Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effects of Kraft Mill Effluent on the Sexuality of Fishes: An Environmental Early Warning.
Author Davis, W. P. ; Bortone, S. A. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL. ;University of West Florida, Pensacola. Dept. of Biology.
Publisher 1992
Year Published 1992
Report Number EPA/600/A-93/056;
Stock Number PB93-168847
Additional Subjects Animal sex behavior ; Water pollution effects(Animals) ; Fresh water fishes ; Environmental monitoring ; Pulp mills ; Stream pollution ; Species diversity ; Reprints ; Poeciliidae
Library Call Number Additional Info Location Last
NTIS  PB93-168847 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/23/1993
Collation 17p
Arrhenoid or masculinized female fish species of the live-bearing family, Poeciliidae, have been observed for over thirteen years in specific southern streams which receive waste effluents from pulping mills. The complex mixture of organic compounds in kraft mill effluent (KME) has inhibited specific identification of causal agent(s). However, microbially degraded phytosterols (e.g. sitosterol or stigmastanol) in experimental exposures induce the same intersexual states that characterize affected female poeciliids sampled from KME streams. KME-polluted streams often exhibit a drastic reduction of fish species diversity and degrees of physiological stress, all of which suggests reduced reproduction in surviving forms. A potential ontogenetic or developmental response is demonstrated in American eels captured in one of these streams as well. The authors examine available information, including laboratory and experimental field exposures, and suggest directions for additional research as well as the need for environmental concern.