Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina

Autores
Gerpe, Marcela Silvia; Rodriguez, Diego Horacio; Moreno, Victor Jorge; Bastida, Ricardo Oscar; Aizpun, Julia Elena
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Marine mammals accumulate heavy metals in their tissues at different concentrations according to trophic levels andenvironmental conditions. The franciscana (Pontoporia blainvillei) is a small coastal species inhabiting the marine and estuarineareas of the Southwestern Atlantic Ocean. Its diet includes numerous species of small fish, squid and crustaceans. The aims of thisstudy were to (i) assess the heavy metal concentration and burden distribution in different franciscana age classes and sex, and to(ii) evaluate both the accumulation processes and the transplacental transference of zinc, cadmium, copper and total mercury.Heavy metal concentrations (wet weight) were determined in eighteen dolphins by Atomic Absorption Spectrophotometry (AAS),by the cold vapour technique (mercury) or with air/acetylene flame (cadmium, zinc and copper). Liver showed the highestconcentrations of mercury (max. 8.8 µg/g), zinc (max. 29.7 µg/g) and copper (max. 19.0 µg/g), whereas the highest cadmiumconcentrations (max. 6.7 µg/g) were found in kidney. Adults contained the highest concentrations for all heavy metals, followedby juveniles and calves in decreasing order, suggesting an age-related accumulation. No differences (p<0.05) were found betweensexes within each age class. Organ burden distribution followed the same pattern for all metals and age classes: liver tissuescontained maximum burdens. Mercury concentrations were higher than those of cadmium in both foetuses and newborns; andneither metal could be detected in the foetus. The analysed data suggested differences in the placental transference betweenmetals, being significant for mercury and almost null in the case of cadmium. We can conclude that franciscana accumulates heavymetals and, due to its coastal distribution, it may be considered as a biomonitor of its environment.
Fil: Gerpe, Marcela Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Rodriguez, Diego Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Moreno, Victor Jorge. Universidad Nacional de Mar del Plata; Argentina
Fil: Bastida, Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Aizpun, Julia Elena. Universidad Nacional de Mar del Plata; Argentina
Materia
Franciscana
Heavy metals
Body burden
Accumulation
Mother-foetus relationship
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/128139
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/128139
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, ArgentinaGerpe, Marcela SilviaRodriguez, Diego HoracioMoreno, Victor JorgeBastida, Ricardo OscarAizpun, Julia ElenaFranciscanaHeavy metalsBody burdenAccumulationMother-foetus relationshiphttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Marine mammals accumulate heavy metals in their tissues at different concentrations according to trophic levels andenvironmental conditions. The franciscana (Pontoporia blainvillei) is a small coastal species inhabiting the marine and estuarineareas of the Southwestern Atlantic Ocean. Its diet includes numerous species of small fish, squid and crustaceans. The aims of thisstudy were to (i) assess the heavy metal concentration and burden distribution in different franciscana age classes and sex, and to(ii) evaluate both the accumulation processes and the transplacental transference of zinc, cadmium, copper and total mercury.Heavy metal concentrations (wet weight) were determined in eighteen dolphins by Atomic Absorption Spectrophotometry (AAS),by the cold vapour technique (mercury) or with air/acetylene flame (cadmium, zinc and copper). Liver showed the highestconcentrations of mercury (max. 8.8 µg/g), zinc (max. 29.7 µg/g) and copper (max. 19.0 µg/g), whereas the highest cadmiumconcentrations (max. 6.7 µg/g) were found in kidney. Adults contained the highest concentrations for all heavy metals, followedby juveniles and calves in decreasing order, suggesting an age-related accumulation. No differences (p<0.05) were found betweensexes within each age class. Organ burden distribution followed the same pattern for all metals and age classes: liver tissuescontained maximum burdens. Mercury concentrations were higher than those of cadmium in both foetuses and newborns; andneither metal could be detected in the foetus. The analysed data suggested differences in the placental transference betweenmetals, being significant for mercury and almost null in the case of cadmium. We can conclude that franciscana accumulates heavymetals and, due to its coastal distribution, it may be considered as a biomonitor of its environment.Fil: Gerpe, Marcela Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Rodriguez, Diego Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Moreno, Victor Jorge. Universidad Nacional de Mar del Plata; ArgentinaFil: Bastida, Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Aizpun, Julia Elena. Universidad Nacional de Mar del Plata; ArgentinaLAJAM2002-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/128139Gerpe, Marcela Silvia; Rodriguez, Diego Horacio; Moreno, Victor Jorge; Bastida, Ricardo Oscar; Aizpun, Julia Elena; Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina; LAJAM; Latin American Journal of Aquatic Mammals; 1; 1; 7-2002; 95-1061676-7497CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://aquaticcommons.org/10037/info:eu-repo/semantics/altIdentifier/doi/10.5597/lajam00013info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:39Zoai:ri.conicet.gov.ar:11336/128139instacron: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:34982025-09-29 10:40:39.707CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
title Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
spellingShingle Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
Gerpe, Marcela Silvia
Franciscana
Heavy metals
Body burden
Accumulation
Mother-foetus relationship
title_short Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
title_full Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
title_fullStr Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
title_full_unstemmed Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
title_sort Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
dc.creator.none.fl_str_mv Gerpe, Marcela Silvia
Rodriguez, Diego Horacio
Moreno, Victor Jorge
Bastida, Ricardo Oscar
Aizpun, Julia Elena
author Gerpe, Marcela Silvia
author_facet Gerpe, Marcela Silvia
Rodriguez, Diego Horacio
Moreno, Victor Jorge
Bastida, Ricardo Oscar
Aizpun, Julia Elena
author_role author
author2 Rodriguez, Diego Horacio
Moreno, Victor Jorge
Bastida, Ricardo Oscar
Aizpun, Julia Elena
author2_role author
author
author
author
dc.subject.none.fl_str_mv Franciscana
Heavy metals
Body burden
Accumulation
Mother-foetus relationship
topic Franciscana
Heavy metals
Body burden
Accumulation
Mother-foetus relationship
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Marine mammals accumulate heavy metals in their tissues at different concentrations according to trophic levels andenvironmental conditions. The franciscana (Pontoporia blainvillei) is a small coastal species inhabiting the marine and estuarineareas of the Southwestern Atlantic Ocean. Its diet includes numerous species of small fish, squid and crustaceans. The aims of thisstudy were to (i) assess the heavy metal concentration and burden distribution in different franciscana age classes and sex, and to(ii) evaluate both the accumulation processes and the transplacental transference of zinc, cadmium, copper and total mercury.Heavy metal concentrations (wet weight) were determined in eighteen dolphins by Atomic Absorption Spectrophotometry (AAS),by the cold vapour technique (mercury) or with air/acetylene flame (cadmium, zinc and copper). Liver showed the highestconcentrations of mercury (max. 8.8 µg/g), zinc (max. 29.7 µg/g) and copper (max. 19.0 µg/g), whereas the highest cadmiumconcentrations (max. 6.7 µg/g) were found in kidney. Adults contained the highest concentrations for all heavy metals, followedby juveniles and calves in decreasing order, suggesting an age-related accumulation. No differences (p<0.05) were found betweensexes within each age class. Organ burden distribution followed the same pattern for all metals and age classes: liver tissuescontained maximum burdens. Mercury concentrations were higher than those of cadmium in both foetuses and newborns; andneither metal could be detected in the foetus. The analysed data suggested differences in the placental transference betweenmetals, being significant for mercury and almost null in the case of cadmium. We can conclude that franciscana accumulates heavymetals and, due to its coastal distribution, it may be considered as a biomonitor of its environment.
Fil: Gerpe, Marcela Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Rodriguez, Diego Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Moreno, Victor Jorge. Universidad Nacional de Mar del Plata; Argentina
Fil: Bastida, Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Aizpun, Julia Elena. Universidad Nacional de Mar del Plata; Argentina
description Marine mammals accumulate heavy metals in their tissues at different concentrations according to trophic levels andenvironmental conditions. The franciscana (Pontoporia blainvillei) is a small coastal species inhabiting the marine and estuarineareas of the Southwestern Atlantic Ocean. Its diet includes numerous species of small fish, squid and crustaceans. The aims of thisstudy were to (i) assess the heavy metal concentration and burden distribution in different franciscana age classes and sex, and to(ii) evaluate both the accumulation processes and the transplacental transference of zinc, cadmium, copper and total mercury.Heavy metal concentrations (wet weight) were determined in eighteen dolphins by Atomic Absorption Spectrophotometry (AAS),by the cold vapour technique (mercury) or with air/acetylene flame (cadmium, zinc and copper). Liver showed the highestconcentrations of mercury (max. 8.8 µg/g), zinc (max. 29.7 µg/g) and copper (max. 19.0 µg/g), whereas the highest cadmiumconcentrations (max. 6.7 µg/g) were found in kidney. Adults contained the highest concentrations for all heavy metals, followedby juveniles and calves in decreasing order, suggesting an age-related accumulation. No differences (p<0.05) were found betweensexes within each age class. Organ burden distribution followed the same pattern for all metals and age classes: liver tissuescontained maximum burdens. Mercury concentrations were higher than those of cadmium in both foetuses and newborns; andneither metal could be detected in the foetus. The analysed data suggested differences in the placental transference betweenmetals, being significant for mercury and almost null in the case of cadmium. We can conclude that franciscana accumulates heavymetals and, due to its coastal distribution, it may be considered as a biomonitor of its environment.
publishDate 2002
dc.date.none.fl_str_mv 2002-07
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/11336/128139
Gerpe, Marcela Silvia; Rodriguez, Diego Horacio; Moreno, Victor Jorge; Bastida, Ricardo Oscar; Aizpun, Julia Elena; Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina; LAJAM; Latin American Journal of Aquatic Mammals; 1; 1; 7-2002; 95-106
1676-7497
CONICET Digital
CONICET
url http://hdl.handle.net/11336/128139
identifier_str_mv Gerpe, Marcela Silvia; Rodriguez, Diego Horacio; Moreno, Victor Jorge; Bastida, Ricardo Oscar; Aizpun, Julia Elena; Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina; LAJAM; Latin American Journal of Aquatic Mammals; 1; 1; 7-2002; 95-106
1676-7497
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://aquaticcommons.org/10037/
info:eu-repo/semantics/altIdentifier/doi/10.5597/lajam00013
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv LAJAM
publisher.none.fl_str_mv LAJAM
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 13.070432

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