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OLS Field Name OLS Field Data
Main Title Environmental Acidification Impact Detection by Examination of Mature Fish Ovaries.
Author McCormick, J. H. ; Stokes, G. N. ; Portele, G. J. ;
CORP Author Environmental Research Lab., Duluth, MN.;Department of Fisheries and Oceans, Winnipeg (Manitoba). Western Region.
Year Published 1980
Report Number EPA-600/J-80-363;
Stock Number PB82-143298
Additional Subjects Acidity ; Toxicology ; Fishes ; Water pollution ; Reproduction(Biology) ; Larvae ; Ovaries ; Reprints ; Fathead minnows ; Water pollution effects(Animals)
Library Call Number Additional Info Location Last
NTIS  PB82-143298 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 12p
Abstract Fathead minnow egg production and hatching success at pH 5.3 was scant to non-existent. Eggs spawned and incubated until hatching at pH 8.1 and 6.3 produced 39.7 and 5.7% normal larvae, respectively; eggs spawned at pH 6.3 incubated at 5.3 produced 0.5% normal larvae. Reproductive failure at pH 5.3 may have been predicted by ovarian histology. Ovaries of fathead minnows at pH 5.3 had exceptionally high proportions of pre-ovulatory corpora atretica relative to other oocyte stages present. The fathead minnow data were generated as a basis of extrapolation to estimate reproductive impairment in smallmouth bass inhabiting acid environments by examination of their ovarian condition.
Supplementary Notes Pub. in Canadian Technical Report of Fisheries and Aquatic Sciences, n975, p41-48 1980. Proceedings of the Annual Aquatic Toxicity Workshop (6th) Held at Winnipeg, Manitoba on November 6-7, 1979. Sponsored in part by Department of Fisheries and Oceans, Winnipeg (Manitoba). Western Region.
NTIS Title Notes Journal article.
Title Annotations Reprint: Environmental Acidification Impact Detection by Examination of Mature Fish Ovaries.
PUB Date Free Form Dec 80
Category Codes 6T; 6F; 57Y; 68D
NTIS Prices PC A02/MF A01
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 323809474
Origin NTIS
Type CAT