Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Digital do Instituto Evandro Chagas (Patuá) |
Texto Completo: | https://patua.iec.gov.br/handle/iec/3827 |
Resumo: | Artisanal and Small-scale Gold Mining (ASGM) has been spreading in the Western Amazon. ASGM is one of the main sources of pollution by anthropogenic mercury on the environment in the Amazon. Ecotoxicological approaches are important to monitoring aquatic ecosystems. They evaluate interactions among contaminants and living organisms and detect possible risks to animal and human health. The hydrological cycles of Amazonian rivers influence the fishery production. Depending on the period, the availability of mercury may also variate in these aquatic systems. This study aimed to monitoring mercury in commercial fishes from the Amazon Triple Frontier. Total mercury (THg) concentrations in muscle (MTHg), liver (LTHg), and gills (GTHg) of Hoplerythrinus unitaeniatus, Hoplias malabaricus, and Pterygoplichthys pardalis caught in the Western Amazon Basin were assessed during the ebb and flood periods. The determination of total mercury concentration in fish samples was done by Cold Vapor Atomic Absorption Spectrophotometry (CVAAS). In both periods, H. unitaeniatus and H. malabaricus presented the highest levels of THg in tissues. In the ebb period, H. unitaeniatus and H. malabaricus had higher levels of MTHg > LTHg > GTHg. All species of the flood period had higher levels of LTHg > MTHg > GTHg. Mercury concentrations of all tissues of H. malabaricus showed significant relationship with length and weight. In P. pardalis, negative length-GTHg and weight-GTHg relationship were observed as well as a negative weight-LTHg correlation. Liver presented the highest levels of THg found in this study. Some individuals of H. malabaricus presented MTHg above safe limits for consumption. These results suggest that fish and human exposure to Hg in the Western Amazon Basin is not constant throughout the year. The flood period seems to be critical for high Hg exposure. This information can be used to development of more specific public policies to reduce the risks of mercurialism in humans from Amazon Triple Frontier as well as impacts on fish diversity and fishery production of Solimões-Amazonas Basin |
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Silva, Stephani Ferreira daOliveira, Diomar CavalcantePereira, João Paulo GóesCastro, Simone PintoCosta, Brenda Natasha SouzaLima, Marcelo de Oliveira2019-08-12T16:23:57Z2019-08-12T16:23:57Z2019SILVA, Stephani Ferreira da et al. Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin. Ecological Indicators, v. 106, e105549, Nov. 2019.1872-7034https://patua.iec.gov.br/handle/iec/382710.1016/j.ecolind.2019.105549Artisanal and Small-scale Gold Mining (ASGM) has been spreading in the Western Amazon. ASGM is one of the main sources of pollution by anthropogenic mercury on the environment in the Amazon. Ecotoxicological approaches are important to monitoring aquatic ecosystems. They evaluate interactions among contaminants and living organisms and detect possible risks to animal and human health. The hydrological cycles of Amazonian rivers influence the fishery production. Depending on the period, the availability of mercury may also variate in these aquatic systems. This study aimed to monitoring mercury in commercial fishes from the Amazon Triple Frontier. Total mercury (THg) concentrations in muscle (MTHg), liver (LTHg), and gills (GTHg) of Hoplerythrinus unitaeniatus, Hoplias malabaricus, and Pterygoplichthys pardalis caught in the Western Amazon Basin were assessed during the ebb and flood periods. The determination of total mercury concentration in fish samples was done by Cold Vapor Atomic Absorption Spectrophotometry (CVAAS). In both periods, H. unitaeniatus and H. malabaricus presented the highest levels of THg in tissues. In the ebb period, H. unitaeniatus and H. malabaricus had higher levels of MTHg > LTHg > GTHg. All species of the flood period had higher levels of LTHg > MTHg > GTHg. Mercury concentrations of all tissues of H. malabaricus showed significant relationship with length and weight. In P. pardalis, negative length-GTHg and weight-GTHg relationship were observed as well as a negative weight-LTHg correlation. Liver presented the highest levels of THg found in this study. Some individuals of H. malabaricus presented MTHg above safe limits for consumption. These results suggest that fish and human exposure to Hg in the Western Amazon Basin is not constant throughout the year. The flood period seems to be critical for high Hg exposure. This information can be used to development of more specific public policies to reduce the risks of mercurialism in humans from Amazon Triple Frontier as well as impacts on fish diversity and fishery production of Solimões-Amazonas BasinThis work was supported by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES – Finance Code 001) and Evandro Chagas Institute (Brazil).Federal University of Pará. Aquatic Ecology and Fishing Graduate Program. Belém, PA, Brazil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Federal University of Pará. Science and the Environment Graduate Program. Belém, PA, Brazil.Federal University of Pará. Aquatic Ecology and Fishing Graduate Program. Belém, PA, Brazil.Federal University of Pará. Aquatic Ecology and Fishing Graduate Program. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil / Federal University of Pará. Science and the Environment Graduate Program. Belém, PA, Brazil.engElsevierSeasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basininfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePeixes / anatomia & histologiaMercúrio / toxicidadeIntoxicação por MercúrioPoluição da Água / análiseEspectrofotometria / métodosMetais Pesados / toxicidadeAbastecimento de AlimentosIndústria PesqueiraBacia do Solimões-Amazonas (BR)info:eu-repo/semantics/openAccessreponame:Repositório Digital do Instituto Evandro Chagas (Patuá)instname:Instituto Evandro Chagas (IEC)instacron:IECORIGINALSeasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin.pdfSeasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin.pdfapplication/pdf3624355https://patua.iec.gov.br/bitstreams/af57afc9-7cbf-412a-8a43-8c42d1f5d6e3/downloadfcd298e7250dcf27217a16cbd9ced7b3MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-82182https://patua.iec.gov.br/bitstreams/ebe71bd0-7f7c-40b1-ad3c-0cb8ef8ed808/download11832eea31b16df8613079d742d61793MD52TEXTSeasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin.pdf.txtSeasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin.pdf.txtExtracted texttext/plain57423https://patua.iec.gov.br/bitstreams/bb402877-820f-44a7-9763-1d98a89a3d48/downloada7ef8c554c5e6caa27cf7f921089cd8cMD55THUMBNAILSeasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin.pdf.jpgSeasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin.pdf.jpgGenerated Thumbnailimage/jpeg5718https://patua.iec.gov.br/bitstreams/443f2f7b-431c-4820-963a-76b425c75aa6/download63b9e4f63138273f04688fc782cf6b3fMD56iec/38272022-10-21 00:40:08.301oai:patua.iec.gov.br:iec/3827https://patua.iec.gov.brRepositório InstitucionalPUBhttps://patua.iec.gov.br/oai/requestclariceneta@iec.gov.br || Biblioteca@iec.gov.bropendoar:2022-10-21T00:40:08Repositório Digital do Instituto Evandro Chagas (Patuá) - 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dc.title.pt_BR.fl_str_mv |
Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin |
title |
Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin |
spellingShingle |
Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin Silva, Stephani Ferreira da Peixes / anatomia & histologia Mercúrio / toxicidade Intoxicação por Mercúrio Poluição da Água / análise Espectrofotometria / métodos Metais Pesados / toxicidade Abastecimento de Alimentos Indústria Pesqueira Bacia do Solimões-Amazonas (BR) |
title_short |
Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin |
title_full |
Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin |
title_fullStr |
Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin |
title_full_unstemmed |
Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin |
title_sort |
Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin |
author |
Silva, Stephani Ferreira da |
author_facet |
Silva, Stephani Ferreira da Oliveira, Diomar Cavalcante Pereira, João Paulo Góes Castro, Simone Pinto Costa, Brenda Natasha Souza Lima, Marcelo de Oliveira |
author_role |
author |
author2 |
Oliveira, Diomar Cavalcante Pereira, João Paulo Góes Castro, Simone Pinto Costa, Brenda Natasha Souza Lima, Marcelo de Oliveira |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Stephani Ferreira da Oliveira, Diomar Cavalcante Pereira, João Paulo Góes Castro, Simone Pinto Costa, Brenda Natasha Souza Lima, Marcelo de Oliveira |
dc.subject.decsPrimary.pt_BR.fl_str_mv |
Peixes / anatomia & histologia Mercúrio / toxicidade Intoxicação por Mercúrio Poluição da Água / análise Espectrofotometria / métodos Metais Pesados / toxicidade Abastecimento de Alimentos Indústria Pesqueira Bacia do Solimões-Amazonas (BR) |
topic |
Peixes / anatomia & histologia Mercúrio / toxicidade Intoxicação por Mercúrio Poluição da Água / análise Espectrofotometria / métodos Metais Pesados / toxicidade Abastecimento de Alimentos Indústria Pesqueira Bacia do Solimões-Amazonas (BR) |
description |
Artisanal and Small-scale Gold Mining (ASGM) has been spreading in the Western Amazon. ASGM is one of the main sources of pollution by anthropogenic mercury on the environment in the Amazon. Ecotoxicological approaches are important to monitoring aquatic ecosystems. They evaluate interactions among contaminants and living organisms and detect possible risks to animal and human health. The hydrological cycles of Amazonian rivers influence the fishery production. Depending on the period, the availability of mercury may also variate in these aquatic systems. This study aimed to monitoring mercury in commercial fishes from the Amazon Triple Frontier. Total mercury (THg) concentrations in muscle (MTHg), liver (LTHg), and gills (GTHg) of Hoplerythrinus unitaeniatus, Hoplias malabaricus, and Pterygoplichthys pardalis caught in the Western Amazon Basin were assessed during the ebb and flood periods. The determination of total mercury concentration in fish samples was done by Cold Vapor Atomic Absorption Spectrophotometry (CVAAS). In both periods, H. unitaeniatus and H. malabaricus presented the highest levels of THg in tissues. In the ebb period, H. unitaeniatus and H. malabaricus had higher levels of MTHg > LTHg > GTHg. All species of the flood period had higher levels of LTHg > MTHg > GTHg. Mercury concentrations of all tissues of H. malabaricus showed significant relationship with length and weight. In P. pardalis, negative length-GTHg and weight-GTHg relationship were observed as well as a negative weight-LTHg correlation. Liver presented the highest levels of THg found in this study. Some individuals of H. malabaricus presented MTHg above safe limits for consumption. These results suggest that fish and human exposure to Hg in the Western Amazon Basin is not constant throughout the year. The flood period seems to be critical for high Hg exposure. This information can be used to development of more specific public policies to reduce the risks of mercurialism in humans from Amazon Triple Frontier as well as impacts on fish diversity and fishery production of Solimões-Amazonas Basin |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-08-12T16:23:57Z |
dc.date.available.fl_str_mv |
2019-08-12T16:23:57Z |
dc.date.issued.fl_str_mv |
2019 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, Stephani Ferreira da et al. Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin. Ecological Indicators, v. 106, e105549, Nov. 2019. |
dc.identifier.uri.fl_str_mv |
https://patua.iec.gov.br/handle/iec/3827 |
dc.identifier.issn.-.fl_str_mv |
1872-7034 |
dc.identifier.doi.-.fl_str_mv |
10.1016/j.ecolind.2019.105549 |
identifier_str_mv |
SILVA, Stephani Ferreira da et al. Seasonal variation of mercury in commercial fishes of the Amazon Triple Frontier, Western Amazon Basin. Ecological Indicators, v. 106, e105549, Nov. 2019. 1872-7034 10.1016/j.ecolind.2019.105549 |
url |
https://patua.iec.gov.br/handle/iec/3827 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Elsevier |
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Elsevier |
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