Full Record Display for the EPA National Library Catalog

RECORD NUMBER: 27 OF 31

OLS Field Name OLS Field Data
Main Title Survival, Blood Osmolality, and Gill Morphology of Juvenile Yellow Perch, Rock Bass, Black Crappie, and Largemouth Bass Exposed to Acidified Soft Water.
Author McCormick, J. H. ; Jensen, K. M. ; Leino, R. L. ;
CORP Author Environmental Research Lab.-Duluth, MN. ;AScI Corp., Duluth, MN. ;Minnesota Univ., Minneapolis. Medical School.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/317;
Stock Number PB90-198706
Additional Subjects Acidification ; Fishes ; Toxicity ; pH ; Exposure ; Fresh water biology ; Pathology ; Blood analysis ; Histology ; Morphology ; Reprints ; Environmental effects ; Aquatic ecosystems ; Water pollution effects(Animals) ; Biological indicators
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB90-198706 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/27/1990
Collation 15p
Abstract When exposed to a range of pH from 7.0 to 4.0 in soft water (1 mg Ca(2+)/L), juvenile rock bass Ambloplites rupestris, black crappie Pomoxis nigromaculatus, and largemouth bass Micropterus salmoides showed a capacity to osmoregulate and survive for up to 30 d at pH 4.5 and above. Juvenile yellow perch Perca flavescens maintained osmoregulatory control through 58 d at pH 5.0. All four species lost osmoregulatory control at pH 4.0, and death of fish ensued within a few days after blood osmolality declined to about 200 mosmol/kg or less (normal values, about 300 mosmol/kg). After 58 d of exposure of pH 4.0, mean blood osmolality of yellow perch was 218 mosmol/kg, and these fish were severely emaciated and moribund. Rock bass, black crappie, and largemouth bass all died by days 29, 16, and 9, respectively, when exposed to pH 4.0. Examination of gills showed progressively increased pathology with longer exposures to lower than normal pH. Among fish exposed to low pH, gill hyperplasia was present most often, but epithelial hypertrophy, chloride-cell proliferation, chloride-cell degeneration, edema, and vacuolization of the tissues also were observed. Morphological changes that were observed in the three centrarchids at pH values above pH 4.0 suggested that gill pathology may be a more sensitive indicator of potentially lethal acid stress than blood osmolality.
Supplementary Notes Pub. in Transactions of the American Fisheries Society, v118 p386-399 1989. Prepared in cooperation with AScI Corp., Duluth, MN., and Minnesota Univ., Minneapolis. Medical School.
NTIS Title Notes Journal article.
Title Annotations Reprint: Survival, Blood Osmolality, and Gill Morphology of Juvenile Yellow Perch, Rock Bass, Black Crappie, and Largemouth Bass Exposed to Acidified Soft Water.
Category Codes 57Y; 57H; 68D
NTIS Prices PC A03/MF A01
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 014419747
Origin NTIS
Type CAT