Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA
Abstract Eggs of neotropic cormorants ( Phalacrocorax brasilianus ), black‐crowned night herons ( Nycticorax nycticorax ), and great egrets ( Ardea alba ) nesting on several locations in Galveston Bay (TX, USA) and at two control sites outside the bay were collected during April–May 1996 and analyze...
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crwiley:10.1002/etc.5620200321 2024-06-23T07:45:15+00:00 Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA Frank, Donell S. Mora, Miguel A. Sericano, Jose L. Blankenship, Alan L. Kannan, Kurunthachalam Giesy, John P. 2001 http://dx.doi.org/10.1002/etc.5620200321 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.5620200321 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5620200321 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 20, issue 3, page 608-617 ISSN 0730-7268 1552-8618 journal-article 2001 crwiley https://doi.org/10.1002/etc.5620200321 2024-06-04T06:40:36Z Abstract Eggs of neotropic cormorants ( Phalacrocorax brasilianus ), black‐crowned night herons ( Nycticorax nycticorax ), and great egrets ( Ardea alba ) nesting on several locations in Galveston Bay (TX, USA) and at two control sites outside the bay were collected during April–May 1996 and analyzed for chlorinated pesticides, PCBs, polychlorinated dibenzo‐ p ‐dioxins, and polychlor‐inated dibenzofurans. Additionally, concentrations of 2,3,7,8‐tetrachlorodibenzo‐p‐dioxin equivalents (TCDD‐EQs) were determined by use of relative potency factors (TEQs) or the H4IIE‐luc bioassay TCDD‐EQs. Concentrations of 1,1,‐dichloro‐2,2‐bis( p ‐chlo‐rophenyl)ethylene (DDE) were greater in eggs of neotropic cormorants from Alexander Island (mean = 1,040 ng/g wet wt) in the Houston Ship Channel (Houston, TX, USA) and in those from Telfair Island (mean = 1,460 ng/g wet wt), a reference location outside the bay, than in most locations inside the bay (mean range = 119–453 ng/g wet wt). Mean PCB concentrations were greater in eggs of neotropic cormorants from Alexander Island (mean = 5,720 ng/g wet wt) than in eggs of cormorants from areas farther away from the ship channel, including two reference sites outside the bay (mean range = 404–3,140 ng/g wet wt). The TCDD was the main dioxin congener detected in eggs from all locations within Galveston Bay. Instrumental TEQs in eggs ranged from 67 pg/g wet weight at control sites to 452 pg/g wet weight at Alexander Island. Concentrations of TCDD‐EQs determined in the H4IIE assay were correlated with instrumental TEQs and were greater in eggs of cormorants from islands within the bay, although these were farther away from the ship channel. Overall, concentrations of DDE, PCBs, TCDD, and TCDD‐EQs were less than the threshold levels known to affect reproduction. However, some eggs contained concentrations of total PCBs or DDE greater than what would elicit adverse effects on birds. No identifiable deformities or abnormalities were detected in embryos collected from all sites. Article in Journal/Newspaper Alexander Island Wiley Online Library Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Environmental Toxicology and Chemistry 20 3 608 617 |
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Open Polar |
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Wiley Online Library |
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language |
English |
description |
Abstract Eggs of neotropic cormorants ( Phalacrocorax brasilianus ), black‐crowned night herons ( Nycticorax nycticorax ), and great egrets ( Ardea alba ) nesting on several locations in Galveston Bay (TX, USA) and at two control sites outside the bay were collected during April–May 1996 and analyzed for chlorinated pesticides, PCBs, polychlorinated dibenzo‐ p ‐dioxins, and polychlor‐inated dibenzofurans. Additionally, concentrations of 2,3,7,8‐tetrachlorodibenzo‐p‐dioxin equivalents (TCDD‐EQs) were determined by use of relative potency factors (TEQs) or the H4IIE‐luc bioassay TCDD‐EQs. Concentrations of 1,1,‐dichloro‐2,2‐bis( p ‐chlo‐rophenyl)ethylene (DDE) were greater in eggs of neotropic cormorants from Alexander Island (mean = 1,040 ng/g wet wt) in the Houston Ship Channel (Houston, TX, USA) and in those from Telfair Island (mean = 1,460 ng/g wet wt), a reference location outside the bay, than in most locations inside the bay (mean range = 119–453 ng/g wet wt). Mean PCB concentrations were greater in eggs of neotropic cormorants from Alexander Island (mean = 5,720 ng/g wet wt) than in eggs of cormorants from areas farther away from the ship channel, including two reference sites outside the bay (mean range = 404–3,140 ng/g wet wt). The TCDD was the main dioxin congener detected in eggs from all locations within Galveston Bay. Instrumental TEQs in eggs ranged from 67 pg/g wet weight at control sites to 452 pg/g wet weight at Alexander Island. Concentrations of TCDD‐EQs determined in the H4IIE assay were correlated with instrumental TEQs and were greater in eggs of cormorants from islands within the bay, although these were farther away from the ship channel. Overall, concentrations of DDE, PCBs, TCDD, and TCDD‐EQs were less than the threshold levels known to affect reproduction. However, some eggs contained concentrations of total PCBs or DDE greater than what would elicit adverse effects on birds. No identifiable deformities or abnormalities were detected in embryos collected from all sites. |
format |
Article in Journal/Newspaper |
author |
Frank, Donell S. Mora, Miguel A. Sericano, Jose L. Blankenship, Alan L. Kannan, Kurunthachalam Giesy, John P. |
spellingShingle |
Frank, Donell S. Mora, Miguel A. Sericano, Jose L. Blankenship, Alan L. Kannan, Kurunthachalam Giesy, John P. Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA |
author_facet |
Frank, Donell S. Mora, Miguel A. Sericano, Jose L. Blankenship, Alan L. Kannan, Kurunthachalam Giesy, John P. |
author_sort |
Frank, Donell S. |
title |
Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA |
title_short |
Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA |
title_full |
Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA |
title_fullStr |
Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA |
title_full_unstemmed |
Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA |
title_sort |
persistent organochlorine pollutants in eggs of colonial waterbirds from galveston bay and east texas, usa |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1002/etc.5620200321 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.5620200321 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5620200321 |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) |
geographic |
Alexander Island |
geographic_facet |
Alexander Island |
genre |
Alexander Island |
genre_facet |
Alexander Island |
op_source |
Environmental Toxicology and Chemistry volume 20, issue 3, page 608-617 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/etc.5620200321 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
20 |
container_issue |
3 |
container_start_page |
608 |
op_container_end_page |
617 |
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1802638550915612672 |