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Main Title Kepone (Trademark): Chronic Effects on Embryo, Fry, Juvenile, and Adult Sheepshead Minnows ('Cyprinodon variegatus').
Author Hansen, David J. ; Goodman, Larry R. ; Wilson, Jr., Alfred J. ;
CORP Author Environmental Research Lab., Gulf Breeze, Fla.
Year Published 1977
Report Number EPA/600/J-77/031 ;Contrib-295;
Stock Number PB-269 933
Additional Subjects Toxicity ; Minnows ; Fishes ; Chlorine organic compounds ; Life cycles ; Exposure ; Physiological effects ; Concentration(Composition) ; Bioassay ; Kepone ; Cyprinodon variegatus ; Water pollution effects(Animals)
Library Call Number Additional Info Location Last
NTIS  PB-269 933 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
Abstract The report discusses the toxicity of Kepone to, and uptake by embryo, fry, juvenile, and adult sheepshead minnows (Cyprinodon variegatus) using intermittent-flow toxicity tests. Concentrations of Kepone and percentage of adult fish surviving in a 28-day exposure were--Control, 95%, 0.5 micrograms/liter, 95%; 0.16 micrograms/liter, 100%; 0.80 micrograms/liter, 78%; 1.9 micrograms/liter, 20%; and 7.8 micrograms/liter and 24 micrograms/liter, 0%. Concentration factors (concentrations in fish divided by concentrations measured in water) for adult fish averaged 5,200 (range 3,100 to 7,000). Symptoms of poisoning included scoliosis, darkening of the posterior one-third of the body, hemorrhaging near the brain and on the body, edema, fin-rot, uncoordinated swimming, and cessation of feeding. Adults survival and growth of fry and juveniles were monitored in a 36-day exposure to Kepone concentrations of 0.08, 0.18, 0.72, 2.0, 6.6, and 33 micrograms/liter.
Supplementary Notes Pub. in Chesapeake Science, v18 n2 p227-232 Jun 77.
NTIS Title Notes Journal article.
PUB Date Free Form 1977
Category Codes 6T; 6F; 13B; 57Y; 68D; 57H
NTIS Prices PC A02/MF A01
Primary Description 600/04
Document Type NT
Cataloging Source NTIS/MT
Control Number 323721503
Origin NTIS
Type CAT