| 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)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB82-143298 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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 |
