Biomonitoring of genomic damage in shags from three Antarctic localities

Autores
Beltrán, Marianela; D'amico, Veronica Laura
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Seabirds play an important role as top consumers in the food web and can be used as biomonitors for exposure to pollutants. Erythrocyte nuclear abnormalities (ENAs) represent one of the most important ways to detect genomic damage associated with environmental degradation and pollution. This study investigates the number of ENAs in three populations of two species of Leucocarbo shags. Blood samples from the Antarctic shag (Leucocarbo bransfieldensis) breeding on the Antarctic Peninsula and the South Shetland Islands and the South Georgia shag (Leucocarbo georgianus) breeding on the South Orkney Islands were analysed. The results revealed evidence of genomic damage in all individuals, with a mean number of ENAs of 26.54 and 43.51/10 000 red blood cells for Antarctic and South Georgia shags, respectively. Thus, the shags from the Orkney Islands showed a higher number of erythrocyte abnormalities, whereas no significant differences were observed among shag populations across the Antarctic Peninsula and South Shetland Islands. These results suggest that, in the northern part of the region, shags might be more exposed to pollutants. They also provide the first reference values for cytogenetic damage in this species and establish a critical baseline for future biomonitoring efforts.
Fil: Beltrán, Marianela. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: D'amico, Veronica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Materia
ANTARCTICA
BLUE-EYE SHAG
ENVIRONMENTAL DETERIORATION
ERYTHROCYTIC NUCLEAR ABNORMALITIES
LEUCOCARBO
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/283529
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/283529
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Biomonitoring of genomic damage in shags from three Antarctic localitiesBeltrán, MarianelaD'amico, Veronica LauraANTARCTICABLUE-EYE SHAGENVIRONMENTAL DETERIORATIONERYTHROCYTIC NUCLEAR ABNORMALITIESLEUCOCARBOhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Seabirds play an important role as top consumers in the food web and can be used as biomonitors for exposure to pollutants. Erythrocyte nuclear abnormalities (ENAs) represent one of the most important ways to detect genomic damage associated with environmental degradation and pollution. This study investigates the number of ENAs in three populations of two species of Leucocarbo shags. Blood samples from the Antarctic shag (Leucocarbo bransfieldensis) breeding on the Antarctic Peninsula and the South Shetland Islands and the South Georgia shag (Leucocarbo georgianus) breeding on the South Orkney Islands were analysed. The results revealed evidence of genomic damage in all individuals, with a mean number of ENAs of 26.54 and 43.51/10 000 red blood cells for Antarctic and South Georgia shags, respectively. Thus, the shags from the Orkney Islands showed a higher number of erythrocyte abnormalities, whereas no significant differences were observed among shag populations across the Antarctic Peninsula and South Shetland Islands. These results suggest that, in the northern part of the region, shags might be more exposed to pollutants. They also provide the first reference values for cytogenetic damage in this species and establish a critical baseline for future biomonitoring efforts.Fil: Beltrán, Marianela. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: D'amico, Veronica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaCambridge University Press2025-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/283529Beltrán, Marianela; D'amico, Veronica Laura; Biomonitoring of genomic damage in shags from three Antarctic localities; Cambridge University Press; Antarctic Science; 7-2025; 1-60954-1020CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/product/identifier/S0954102025100229/type/journal_articleinfo:eu-repo/semantics/altIdentifier/doi/10.1017/S0954102025100229info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:33:37Zoai:ri.conicet.gov.ar:11336/283529instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 14:33:38.16CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Biomonitoring of genomic damage in shags from three Antarctic localities
title Biomonitoring of genomic damage in shags from three Antarctic localities
spellingShingle Biomonitoring of genomic damage in shags from three Antarctic localities
Beltrán, Marianela
ANTARCTICA
BLUE-EYE SHAG
ENVIRONMENTAL DETERIORATION
ERYTHROCYTIC NUCLEAR ABNORMALITIES
LEUCOCARBO
title_short Biomonitoring of genomic damage in shags from three Antarctic localities
title_full Biomonitoring of genomic damage in shags from three Antarctic localities
title_fullStr Biomonitoring of genomic damage in shags from three Antarctic localities
title_full_unstemmed Biomonitoring of genomic damage in shags from three Antarctic localities
title_sort Biomonitoring of genomic damage in shags from three Antarctic localities
dc.creator.none.fl_str_mv Beltrán, Marianela
D'amico, Veronica Laura
author Beltrán, Marianela
author_facet Beltrán, Marianela
D'amico, Veronica Laura
author_role author
author2 D'amico, Veronica Laura
author2_role author
dc.subject.none.fl_str_mv ANTARCTICA
BLUE-EYE SHAG
ENVIRONMENTAL DETERIORATION
ERYTHROCYTIC NUCLEAR ABNORMALITIES
LEUCOCARBO
topic ANTARCTICA
BLUE-EYE SHAG
ENVIRONMENTAL DETERIORATION
ERYTHROCYTIC NUCLEAR ABNORMALITIES
LEUCOCARBO
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Seabirds play an important role as top consumers in the food web and can be used as biomonitors for exposure to pollutants. Erythrocyte nuclear abnormalities (ENAs) represent one of the most important ways to detect genomic damage associated with environmental degradation and pollution. This study investigates the number of ENAs in three populations of two species of Leucocarbo shags. Blood samples from the Antarctic shag (Leucocarbo bransfieldensis) breeding on the Antarctic Peninsula and the South Shetland Islands and the South Georgia shag (Leucocarbo georgianus) breeding on the South Orkney Islands were analysed. The results revealed evidence of genomic damage in all individuals, with a mean number of ENAs of 26.54 and 43.51/10 000 red blood cells for Antarctic and South Georgia shags, respectively. Thus, the shags from the Orkney Islands showed a higher number of erythrocyte abnormalities, whereas no significant differences were observed among shag populations across the Antarctic Peninsula and South Shetland Islands. These results suggest that, in the northern part of the region, shags might be more exposed to pollutants. They also provide the first reference values for cytogenetic damage in this species and establish a critical baseline for future biomonitoring efforts.
Fil: Beltrán, Marianela. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: D'amico, Veronica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
description Seabirds play an important role as top consumers in the food web and can be used as biomonitors for exposure to pollutants. Erythrocyte nuclear abnormalities (ENAs) represent one of the most important ways to detect genomic damage associated with environmental degradation and pollution. This study investigates the number of ENAs in three populations of two species of Leucocarbo shags. Blood samples from the Antarctic shag (Leucocarbo bransfieldensis) breeding on the Antarctic Peninsula and the South Shetland Islands and the South Georgia shag (Leucocarbo georgianus) breeding on the South Orkney Islands were analysed. The results revealed evidence of genomic damage in all individuals, with a mean number of ENAs of 26.54 and 43.51/10 000 red blood cells for Antarctic and South Georgia shags, respectively. Thus, the shags from the Orkney Islands showed a higher number of erythrocyte abnormalities, whereas no significant differences were observed among shag populations across the Antarctic Peninsula and South Shetland Islands. These results suggest that, in the northern part of the region, shags might be more exposed to pollutants. They also provide the first reference values for cytogenetic damage in this species and establish a critical baseline for future biomonitoring efforts.
publishDate 2025
dc.date.none.fl_str_mv 2025-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/283529
Beltrán, Marianela; D'amico, Veronica Laura; Biomonitoring of genomic damage in shags from three Antarctic localities; Cambridge University Press; Antarctic Science; 7-2025; 1-6
0954-1020
CONICET Digital
CONICET
url http://hdl.handle.net/11336/283529
identifier_str_mv Beltrán, Marianela; D'amico, Veronica Laura; Biomonitoring of genomic damage in shags from three Antarctic localities; Cambridge University Press; Antarctic Science; 7-2025; 1-6
0954-1020
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/product/identifier/S0954102025100229/type/journal_article
info:eu-repo/semantics/altIdentifier/doi/10.1017/S0954102025100229
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.265058

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