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16 results on '"Manhães, Bárbara"'

2. Beyond the threshold - Different accumulation of organochlorine compounds in common dolphins (Delphinus delphis) inhabiting continental and insular ecosystems in the Northeast Atlantic

Author

Valente, Raul, de Oliveira-Ferreira, Nara, Ferreira, Rita, Correia, Ana M., Manhães, Bárbara M.R., Gil, Ágatha, Sambolino, Annalisa, Santos-Neto, Elitieri B., Castro, L. Filipe C., Cunha, Haydée A., Azevedo, Alexandre F., Dinis, Ana, Bisi, Tatiana L., Sousa-Pinto, Isabel, Alves, Filipe, and Lailson-Brito, José

Published
2025
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5. The deep dive of organohalogen compounds: Bioaccumulation in the top predators of mesopelagic trophic webs, pygmy and dwarf sperm whales, from the Southwestern Atlantic ocean

Author

de Oliveira-Ferreira, Nara, Santos-Neto, Elitieri B., Manhães, Bárbara M.R., Carvalho, Vitor L., Gonçalves, Letícia, de Castilho, Pedro V., Secchi, Eduardo R., Botta, Silvina, Marcondes, Milton C.C., Colosio, Adriana C., Cremer, Marta J., Cunha, Haydée A., Azevedo, Alexandre F., Bisi, Tatiana L., and Lailson-Brito, José

Published
2023
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8. Franciscana dolphins, Pontoporia blainvillei, as environmental sentinels of the world's largest mining disaster: Temporal trends for organohalogen compounds and their consequences for an endangered population

Author

de Oliveira-Ferreira, Nara, Manhães, Bárbara M.R., Santos-Neto, Elitieri B., Rocha, Yasmin, Guari, Emi B., Botta, Silvina, Colosio, Adriana C., Ramos, Hernani G.C., Barbosa, Lupércio, Cunha, Ian A.G., Bisi, Tatiana L., Azevedo, Alexandre F., Cunha, Haydée A., and Lailson-Brito, José

Published
2022
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10. Contributors

Author

Andriolo, Artur, primary, Barbosa, Carla Beatriz, additional, Barreto, André Silva, additional, Bassoi, Manuela, additional, Beneditto, Ana Paula Madeira Di, additional, Berninsone, Leonardo G., additional, Bertozzi, Carolina Pacheco, additional, Bessega, Miguel Iñíguez, additional, Bisi, Tatiana Lemos, additional, Botta, Silvina, additional, Bracarense, Ana Paula Frederico Rodrigues Loureiro, additional, Broadhurst, Matt K., additional, Carvalho, Camila Carvalho de, additional, Castilho, Pedro Volkmer de, additional, Chupil, Henrique, additional, Claudino, Rodrigo, additional, Colosio, Adriana Castaldo, additional, Cremer, Marta Jussara, additional, Crespo, Enrique A., additional, Cunha, Haydée Andrade, additional, Danilewicz, Daniel, additional, Denuncio, Pablo, additional, Dias, Liane Amaral, additional, Domiciano, Isabela Guarnier, additional, Domit, Camila, additional, Estima, Sergio, additional, Failla, Mauricio, additional, Fallabrino, Alejandro, additional, Farro, Ana Paula Cazerta, additional, Fisher, Sue, additional, Fonseca, Gabriel Fraga da, additional, Forselledo, Rodrigo, additional, Gonçalves, Isabel, additional, Gutstein, Carolina S., additional, Herbst, Danniele Firme, additional, Iturriaga, Camila Márquez, additional, Iñíguez Bessega, Miguel, additional, Jiménez, Sebástian, additional, Júnior, José Lailson-Brito, additional, Kolesnikovas, Cristiane Kiyomi Miyagi, additional, Laporta, Paula, additional, Laporta, Martín, additional, Maranho, Andrea, additional, Marcondes, Daiane Santana, additional, Marigo, Juliana, additional, Melcón, Mariana, additional, Monteiro, Danielle, additional, Moura Reis Manhães, Bárbara, additional, Oliveira-Ferreira, Nara, additional, Ott, Paulo Henrique, additional, Paitach, Renan Lopes, additional, Passadore, Cecilia, additional, Prado, Jonatas Henrique, additional, Rocha, Alessandra, additional, Rodriguez-Heredia, Sergio, additional, Rodríguez, Diego, additional, Rosenthal, Alan, additional, Santos-Neto, Elitieri, additional, Secchi, Eduardo R., additional, Silva, Angela Zaccaron, additional, Simões-Lopes, Paulo César, additional, Sucunza, Federico, additional, Tanios, Gabriela, additional, Tardin, Rodrigo Hipólito, additional, Tavares, Maurício, additional, Torres-Florez, Juan Pablo, additional, Tossenberger, Vanessa, additional, Trevizani, Tailise Hoppe, additional, Troina, Genyffer Cibele, additional, Tullio, Juliana Di, additional, Valdivia, Meca, additional, Valente, Ana Luisa, additional, Valle, Rodrigo del Rio do, additional, Van Belleghem, Tara, additional, Vidal, Lara Gama, additional, Vélez-Rubio, Gabriela, additional, Wells, Randall S., additional, Werner, Timothy B., additional, Zapata, Maria Fernanda, additional, Zappes, Camilah Antunes, additional, and Zerbini, Alexandre Novais, additional

Published
2022
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14. The Commerson's dolphin as Subantarctic sentinel of POPs: Insights into the pollutant status in one of the southernmost coastal areas of the globe.

Author

Cáceres-Saez, Iris, Santos-Neto, Elitieri, Cassini, Guillermo, Manhães, Bárbara, Rodrigues dos Santos, Samara, de Oliveira-Ferreira, Nara, Cappozzo, H. Luis, and Lailson Brito, José

Subjects
ORGANOCHLORINE compounds, CETACEA, DOLPHINS, PERSISTENT pollutants, MOLECULAR weights, DDT (Insecticide), BLUBBER
Abstract

Persistent organic pollutants (POPs) are halogenated contaminants found globally. Cetaceans are impacted by these pollutants, and nowadays, it is essential to understand their presence to mitigate their impacts. This study aimed to establish baseline levels of POPs in the blubber of Commerson's dolphins (Cephalorhynchus commersonii) within the Subantarctic ecosystem. A wide range of POPs concentrations were measured among individuals: ΣPCBs from 289.5 to 15264 ng g−1 lw and ΣDDTs from 540.4 to 17657 ng g−1 lw. Levels of HCB and mirex ranged from 48 to 1703.7 ng g−1 lw and 5.1–1917.4 ng g−1 lw, respectively. The predominant POPs were mid-to high molecular weight PCBs (hexa-PCBs), consistent with other findings in cetaceans of the southern hemisphere. The mean ratio of ΣDDT/ΣPCB was 0.44, with p,p ′-DDE/ΣDDT at 0.56, indicating p,p '-DDE as the dominant DDT isomer. Furthermore, differences in POP concentrations were observed based on sexual maturity, with mature males exhibiting higher levels of ƩPCBs, HCB, ƩDDT, and mirex. Age and total body length of animals were strongly correlated with POP concentrations. Our study provides valuable insights into the pollutant status of POPs in the Subantarctic population of Commerson's dolphins inhabiting the southernmost coastal regions of South America. [Display omitted] • PCBs, DDTs, HCB, and mirex levels were measured in Subantarctic Commerson's dolphins for the first time. • Mature males of Commerson's dolphins exhibited higher concentrations of POPs. • Age and total body length of individuals correlated strongly with POPs concentrations. • Elevated levels of DDT suggest recent inputs of the pesticide in this coastal marine system. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Long-Term Consequences of High Polychlorinated Biphenyl Exposure: Projected Decline of Delphinid Populations in a Hotspot for Chemical Pollution

Author

de Oliveira-Ferreira, Nara, primary, Carvalho, Rafael R., additional, Santos-Neto, Elitieri B., additional, Manhães, Bárbara M. R., additional, Guari, Emi B., additional, Domit, Camila, additional, Secchi, Eduardo R., additional, Botta, Silvina, additional, Cunha, Haydée A., additional, Azevedo, Alexandre F., additional, Bisi, Tatiana L., additional, and Lailson-Brito, José, additional

Published
2021
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