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Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters

Industrial wastewaters and urban discharges contain complex mixtures of chemicals capable of impacting reproductive performance in freshwater fish, called endocrine-disrupting compounds (EDCs). In Chile, the issue was highlighted by our group beginning over 15 years ago, by analyzing the impacts of...

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Autores principales: Barra, Ricardo O., Chiang, Gustavo, Saavedra, Maria Fernanda, Orrego, Rodrigo, Servos, Mark R., Hewitt, L. Mark, McMaster, Mark E., Bahamonde, Paulina, Tucca, Felipe, Munkittrick, Kelly R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8027499/
https://www.ncbi.nlm.nih.gov/pubmed/33841326
http://dx.doi.org/10.3389/fendo.2021.611281
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author Barra, Ricardo O.
Chiang, Gustavo
Saavedra, Maria Fernanda
Orrego, Rodrigo
Servos, Mark R.
Hewitt, L. Mark
McMaster, Mark E.
Bahamonde, Paulina
Tucca, Felipe
Munkittrick, Kelly R.
author_facet Barra, Ricardo O.
Chiang, Gustavo
Saavedra, Maria Fernanda
Orrego, Rodrigo
Servos, Mark R.
Hewitt, L. Mark
McMaster, Mark E.
Bahamonde, Paulina
Tucca, Felipe
Munkittrick, Kelly R.
author_sort Barra, Ricardo O.
collection PubMed
description Industrial wastewaters and urban discharges contain complex mixtures of chemicals capable of impacting reproductive performance in freshwater fish, called endocrine-disrupting compounds (EDCs). In Chile, the issue was highlighted by our group beginning over 15 years ago, by analyzing the impacts of pulp and paper mill effluents (PPME) in the Biobio, Itata, and Cruces River basins. All of the rivers studied are important freshwater ecosystems located in the Mediterranean region of Central Chile, each with a unique fish biodiversity. Sequentially, we developed a strategy based on laboratory assays, semicontrolled-field experiments (e.g., caging) and wild fish population assessments to explore the issue of reproductive impacts on both introduced and native fish in Chile. The integration of watershed, field, and laboratory studies was effective at understanding the endocrine responses in Chilean freshwater systems. The studies demonstrated that regardless of the type of treatment, pulp mill effluents can contain compounds capable of impacting endocrine systems. Urban wastewater treatment plant effluents (WWTP) were also investigated using the same integrated strategy. Although not directly compared, PPME and WWTP effluent seem to cause similar estrogenic effects in fish after waterborne exposure, with differing intensities. This body of work underscores the urgent need for further studies on the basic biology of Chilean native fish species, and an improved understanding on reproductive development and variability across Chilean ecosystems. The lack of knowledge of the ontogeny of Chilean fish, especially maturation and sexual development, with an emphasis on associated habitats and landscapes, are impediment factors for their conservation and protection against the threat of EDCs. The assessment of effects on native species in the receiving environment is critical for supporting and designing protective regulations and remediation strategies, and for conserving the unique Chilean fish biodiversity.
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spelling pubmed-80274992021-04-09 Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters Barra, Ricardo O. Chiang, Gustavo Saavedra, Maria Fernanda Orrego, Rodrigo Servos, Mark R. Hewitt, L. Mark McMaster, Mark E. Bahamonde, Paulina Tucca, Felipe Munkittrick, Kelly R. Front Endocrinol (Lausanne) Endocrinology Industrial wastewaters and urban discharges contain complex mixtures of chemicals capable of impacting reproductive performance in freshwater fish, called endocrine-disrupting compounds (EDCs). In Chile, the issue was highlighted by our group beginning over 15 years ago, by analyzing the impacts of pulp and paper mill effluents (PPME) in the Biobio, Itata, and Cruces River basins. All of the rivers studied are important freshwater ecosystems located in the Mediterranean region of Central Chile, each with a unique fish biodiversity. Sequentially, we developed a strategy based on laboratory assays, semicontrolled-field experiments (e.g., caging) and wild fish population assessments to explore the issue of reproductive impacts on both introduced and native fish in Chile. The integration of watershed, field, and laboratory studies was effective at understanding the endocrine responses in Chilean freshwater systems. The studies demonstrated that regardless of the type of treatment, pulp mill effluents can contain compounds capable of impacting endocrine systems. Urban wastewater treatment plant effluents (WWTP) were also investigated using the same integrated strategy. Although not directly compared, PPME and WWTP effluent seem to cause similar estrogenic effects in fish after waterborne exposure, with differing intensities. This body of work underscores the urgent need for further studies on the basic biology of Chilean native fish species, and an improved understanding on reproductive development and variability across Chilean ecosystems. The lack of knowledge of the ontogeny of Chilean fish, especially maturation and sexual development, with an emphasis on associated habitats and landscapes, are impediment factors for their conservation and protection against the threat of EDCs. The assessment of effects on native species in the receiving environment is critical for supporting and designing protective regulations and remediation strategies, and for conserving the unique Chilean fish biodiversity. Frontiers Media S.A. 2021-03-25 /pmc/articles/PMC8027499/ /pubmed/33841326 http://dx.doi.org/10.3389/fendo.2021.611281 Text en Copyright © 2021 Barra, Chiang, Saavedra, Orrego, Servos, Hewitt, McMaster, Bahamonde, Tucca and Munkittrick https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Endocrinology
Barra, Ricardo O.
Chiang, Gustavo
Saavedra, Maria Fernanda
Orrego, Rodrigo
Servos, Mark R.
Hewitt, L. Mark
McMaster, Mark E.
Bahamonde, Paulina
Tucca, Felipe
Munkittrick, Kelly R.
Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters
title Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters
title_full Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters
title_fullStr Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters
title_full_unstemmed Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters
title_short Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters
title_sort endocrine disruptor impacts on fish from chile: the influence of wastewaters
topic Endocrinology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8027499/
https://www.ncbi.nlm.nih.gov/pubmed/33841326
http://dx.doi.org/10.3389/fendo.2021.611281
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