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Titolo:
Accumulation and selective maternal transfer of contaminants in the turtleTrachemys scripta associated with coal ash deposition
Autore:
Nagle, RD; Rowe, CL; Congdon, JD;
Indirizzi:
Univ Georgia, Savannah River Ecol Lab, Reprints Dept, Aiken, SC 29802 USA Univ Georgia Aiken SC USA 29802 l Lab, Reprints Dept, Aiken, SC 29802 USA Juniata Coll, Huntingdon, PA 16652 USA Juniata Coll Huntingdon PA USA 16652 niata Coll, Huntingdon, PA 16652 USA Univ Maryland, Chesapeake Biol Lab, Ctr Environm Sci, Solomons, MD 20688 USA Univ Maryland Solomons MD USA 20688 Environm Sci, Solomons, MD 20688 USA
Titolo Testata:
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
fascicolo: 4, volume: 40, anno: 2001,
pagine: 531 - 536
SICI:
0090-4341(200105)40:4<531:AASMTO>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHELYDRA-SERPENTINA-SERPENTINA; TRACE-ELEMENT CONCENTRATIONS; STANDARD METABOLIC-RATE; COMBUSTION WASTE; RANA-CATESBEIANA; BUFO-TERRESTRIS; LARUS-ATRICILLA; SOUTHERN TOADS; LAUGHING GULL; CADMIUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Nagle, RD Univ Georgia, Savannah River Ecol Lab, Reprints Dept, Drawer E, Aiken, SC 29802 USA Univ Georgia Drawer E Aiken SC USA 29802 E, Aiken, SC 29802 USA
Citazione:
R.D. Nagle et al., "Accumulation and selective maternal transfer of contaminants in the turtleTrachemys scripta associated with coal ash deposition", ARCH ENV C, 40(4), 2001, pp. 531-536

Abstract

Coal combustion wastes are enriched in a number of potentially toxic compounds and may pose risks to biota exposed to the wastes. Slider turtles (Trachemys scripta) are common inhabitants of coal ash settling basins in SouthCarolina, USA, where they feed on contaminated prey items and accumulate high levels of potentially toxic compounds in their tissues. Furthermore, female sliders sometimes nest in contaminated spill piles and thus may exposeembryos to contaminated soils. We examined two potential pathways by whichfemale T. scripta may influence the survivorship and quality of their offspring in a contaminated habitat: (1) nesting in contaminated soil and (2) maternal transfer of pollutants. Eggs were collected from turtles captured in coal ash-polluted or unpolluted sites; individual clutches were incubatedin both ash-contaminated and uncontaminated soil in outdoor, artificial nests. Incubation in contaminated soil was associated with reduced embryo survivorship. Adult females from the polluted site accumulated high levels of As, Cd, Cr, and Se in their tissues, yet Se was the only element transferred maternally to hatchlings at relatively high levels. Hatchlings from polluted-site females exhibited reduced O-2 consumption rates compared to hatchlings from reference sites. Relatively high levels of Se transferred to hatchlings by females at the ash-polluted site might contribute to the observeddifferences in hatchling physiology.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/08/20 alle ore 14:34:16