Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples
Abstract Four species of reptiles (diamondback water snake [ Nerodia rhombifer ], blotched water snake [ N. erythrogaster ], cottonmouth [ Agkistrodon piscivorus ], and red‐eared slider [ Trachemys scripta ]) were collected at two contaminated and three reference sites in Texas, USA. Old River Sloug...
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crwiley:10.1002/etc.5620190916 2024-06-02T08:06:20+00:00 Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples Clark, Donald R. Bickham, John W. Baker, Denise L. Cowman, Deborah F. 2000 http://dx.doi.org/10.1002/etc.5620190916 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.5620190916 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5620190916 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 19, issue 9, page 2259-2265 ISSN 0730-7268 1552-8618 journal-article 2000 crwiley https://doi.org/10.1002/etc.5620190916 2024-05-03T10:43:13Z Abstract Four species of reptiles (diamondback water snake [ Nerodia rhombifer ], blotched water snake [ N. erythrogaster ], cottonmouth [ Agkistrodon piscivorus ], and red‐eared slider [ Trachemys scripta ]) were collected at two contaminated and three reference sites in Texas, USA. Old River Slough has received intensive applications of agricultural chemicals since the 1950s. Municipal Lake received industrial arsenic wastes continuously from 1940 to 1993. Blood samples were analyzed for organochlorines, potentially toxic elements, genetic damage, and plasma cholinesterase (ChE). Dichlorodiphenyldichloroethylene (DDE) concentrations reached as high as 3.0 ppm (wet weight) in whole blood of a diamondback water snake at Old River Slough, a level probably roughly equivalent to the maximum concentration found in plasma of peregrine falcons ( Falco peregrinus ) in 1978 to 1979 when DDE peaked in this sensitive species. Possible impacts on diamondback water snakes are unknown, but at least one diamondback water snake was gravid when captured, indicating active reproduction. Arsenic was not found in red‐eared sliders (only species sampled) from Municipal Lake. Red‐eared sliders of both sexes at Old River Slough showed declining levels of ChE with increasing mass, suggesting a life‐long decrease of ChE levels. Possible negative population consequences are unknown, but no evidence was found in body condition (mass relative to carapace length) that red‐eared sliders at either contaminated site were harmed. Article in Journal/Newspaper Falco peregrinus Wiley Online Library Environmental Toxicology and Chemistry 19 9 2259 2265 |
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Abstract Four species of reptiles (diamondback water snake [ Nerodia rhombifer ], blotched water snake [ N. erythrogaster ], cottonmouth [ Agkistrodon piscivorus ], and red‐eared slider [ Trachemys scripta ]) were collected at two contaminated and three reference sites in Texas, USA. Old River Slough has received intensive applications of agricultural chemicals since the 1950s. Municipal Lake received industrial arsenic wastes continuously from 1940 to 1993. Blood samples were analyzed for organochlorines, potentially toxic elements, genetic damage, and plasma cholinesterase (ChE). Dichlorodiphenyldichloroethylene (DDE) concentrations reached as high as 3.0 ppm (wet weight) in whole blood of a diamondback water snake at Old River Slough, a level probably roughly equivalent to the maximum concentration found in plasma of peregrine falcons ( Falco peregrinus ) in 1978 to 1979 when DDE peaked in this sensitive species. Possible impacts on diamondback water snakes are unknown, but at least one diamondback water snake was gravid when captured, indicating active reproduction. Arsenic was not found in red‐eared sliders (only species sampled) from Municipal Lake. Red‐eared sliders of both sexes at Old River Slough showed declining levels of ChE with increasing mass, suggesting a life‐long decrease of ChE levels. Possible negative population consequences are unknown, but no evidence was found in body condition (mass relative to carapace length) that red‐eared sliders at either contaminated site were harmed. |
format |
Article in Journal/Newspaper |
author |
Clark, Donald R. Bickham, John W. Baker, Denise L. Cowman, Deborah F. |
spellingShingle |
Clark, Donald R. Bickham, John W. Baker, Denise L. Cowman, Deborah F. Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples |
author_facet |
Clark, Donald R. Bickham, John W. Baker, Denise L. Cowman, Deborah F. |
author_sort |
Clark, Donald R. |
title |
Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples |
title_short |
Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples |
title_full |
Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples |
title_fullStr |
Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples |
title_full_unstemmed |
Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples |
title_sort |
environmental contaminants in texas, usa, wetland reptiles: evaluation using blood samples |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.1002/etc.5620190916 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.5620190916 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5620190916 |
genre |
Falco peregrinus |
genre_facet |
Falco peregrinus |
op_source |
Environmental Toxicology and Chemistry volume 19, issue 9, page 2259-2265 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/etc.5620190916 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
19 |
container_issue |
9 |
container_start_page |
2259 |
op_container_end_page |
2265 |
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1800751281219829760 |