Full Record Display for the EPA National Library Catalog
RECORD NUMBER: 329 OF 864| Main Title | Effects of Heptachlor and Toxaphene on Laboratory-Reared Embryos and Fry of the Sheepshead Minnow. | |||||||||||
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| Author | Goodman, Larry R. ; Hansen, David J. ; Couch, John A. ; Forester, Jerrold ; | |||||||||||
| CORP Author | Environmental Research Lab., Gulf Breeze, FL. | |||||||||||
| Year Published | 1976 | |||||||||||
| Report Number | EPA/600/J-76/086 ;CONTRIB-297; | |||||||||||
| Stock Number | PB-290 072 | |||||||||||
| Additional Subjects | Pesticides ; Heptachlor ; Insecticides ; Toxicology ; Minnows ; Fishes ; Chlorine organic compounds ; Bioassay ; Camphene ; Concentration(Composition) ; Histology ; Pathology ; Larvae ; Toxaphene ; Methanoindene/heptachloro-tetrahydro ; Toxic substances ; Bioaccumulation ; Cyprinodon variegatus ; Water pollution effects(Animals) ; Histopathology ; Reprints | |||||||||||
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| Collation | 13p | |||||||||||
| Abstract | Flow-through seawater bioassays of 28-days duration were conducted with the organochlorine pesticides heptachlor and toxaphene to determine their toxicity to and bioconcentration by embryos and fry of the sheepshead minnow (Cyprindon variegatus). At technical heptachlor measured concentrations of 4.3, 3.5, 2.2, 2.0, and 1.2 micrograms/l (ppb), test animal survival was 1, 5, 61, 79, and 88%, respectively. At toxaphene measured concentrations of 2.5, 1.1, 0.6, 0.3, and 0.2 micrograms/l, test animal survival was 10, 85, 79, 88, and 80% respectively. Average standard length of fry continuously exposed from fertilization to heptachlor concentrations of 4.3 and 3.5 micrograms/l was significantly reduced. Concentration factors (concentration in fish/measured concentration in water) for heptachlor averaged 3,600 and for transchlordane averaged 8,600. Heptachlor epoxide and cis-chordane were also present in the fish. Concentration factors for toxaphene in fry averaged 9,800. Various histopathological characteristics not seen in control fish were observed in the liver, kidney, pancreas, and intestine of the few fish that survived 4.3 and 3.5 micrograms/l of heptachlor. | |||||||||||
| Supplementary Notes | Pub. in Southeastern Association of Game and Fish Commissioners Annual Conference (30th), p192-202 1976. | |||||||||||
| NTIS Title Notes | Journal article (Final). | |||||||||||
| Title Annotations | Reprint: Effects of Heptachlor and Toxaphene on Laboratory-Reared Embryos and Fry of the Sheepshead Minnow. | |||||||||||
| PUB Date Free Form | 1976 | |||||||||||
| Category Codes | 6T; 6F; 8A; 57Y; 68E; 68D; 47D | |||||||||||
| NTIS Prices | PC A02/MF A01 | |||||||||||
| Primary Description | 600/04 | |||||||||||
| Document Type | NT | |||||||||||
| Cataloging Source | NTIS/MT | |||||||||||
| Control Number | 323754549 | |||||||||||
| Origin | NTIS | |||||||||||
| Type | CAT |