Freshwater mollusks as proxies for assessing agrochemicals hazards in Volta Grande Reservoir, Brazil
Brazil has experienced a rise in the use of agrochemicals in recent years, representing a potential threat to nearby ecosystems. The Volta Grande Reservoir (Minas Gerais/São Paulo, Brazil) has about 87% of its area surrounded by agricultural systems, and many compounds used in agriculture end up bei...
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doaj-36dc3bd9102e4b3398c9bc64852f924a2021-07-17T00:03:32ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2021-06-0116311410.4136/ambi-agua.2681Freshwater mollusks as proxies for assessing agrochemicals hazards in Volta Grande Reservoir, BrazilAndressa Mendes Sene0https://orcid.org/0000-0002-6167-0118Daniel Melo Rosa1https://orcid.org/0000-0001-5520-0980Silvia Maria Millan Gutierre2https://orcid.org/0000-0003-1905-3535Paulo Santos Pompeu3https://orcid.org/0000-0002-7938-1517Instituto de Ciências Naturais. Departamento de Ecologia e Conservação. Universidade Federal de Lavras (UFLA), Avenida Doutor Sílvio Menicucci, s/n, CEP: 37200-900, Lavras, MG, Brazil. Programa de Pós-graduação em Ciências (FIMAT). Departamento de Física. Universidade Federal de Ouro Preto (UFOP), Rua Cinco, n° 2, CEP: 35400-000, Ouro Preto, MG, Brazil. Centro de Bioengenharia de Espécies Invasoras de Hidrelétricas (CBEIH), Avenida José Cândido da Silveira, n° 21000, CEP: 31035-536, Belo Horizonte, MG, Brazil. Instituto de Ciências Naturais. Departamento de Ecologia e Conservação. Universidade Federal de Lavras (UFLA), Avenida Doutor Sílvio Menicucci, s/n, CEP: 37200-900, Lavras, MG, Brazil. Instituto de Ciências Naturais. Departamento de Ecologia e Conservação. Universidade Federal de Lavras (UFLA), Avenida Doutor Sílvio Menicucci, s/n, CEP: 37200-900, Lavras, MG, Brazil. Brazil has experienced a rise in the use of agrochemicals in recent years, representing a potential threat to nearby ecosystems. The Volta Grande Reservoir (Minas Gerais/São Paulo, Brazil) has about 87% of its area surrounded by agricultural systems, and many compounds used in agriculture end up being carried into nearby water bodies. Given the potential ecological risk, our purpose was to assess pesticides in the reservoir. We collected specimens of two bivalves and three gastropods using bottom dredging and visual investigation in three different sites within the reservoir. The sampling sites were classified according to their distance from the dam, and all were close to agricultural lands. The samples were processed and frozen for qualitative toxicological analysis using mass spectrophotometry. Eight pesticides were identified, including four organochlorines (Aldrin, p,p’-DDE, Heptachlor epoxide, and Endrin) and organophosphates (Disulfoton, Malathion, Parathion- methyl, and Parathion-ethyl). All five studied species (Limnoperna fortunei, Corbicula fluminea, Melanoides tuberculata, Aylacostoma tenuilabris, and Pomacea aff. canaliculata) presented traces of pesticides in their bodies. Of the eight pesticides found in our analysis, six are illegal in Brazil, raising awareness about the continuous use of forbidden pesticides, and also the ecological risk in the Volta Grande Reservoir area. Our results suggest stricter control by environmental agencies regarding the use and commercialization of these illegal toxic compounds.https://www.scielo.br/j/ambiagua/a/jNFhbCVTCpyhY3pQf3NhfwB/?lang=enbivalvegastropodahigh contamination-riskorganic agrochemicalspesticides |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Andressa Mendes Sene Daniel Melo Rosa Silvia Maria Millan Gutierre Paulo Santos Pompeu |
spellingShingle |
Andressa Mendes Sene Daniel Melo Rosa Silvia Maria Millan Gutierre Paulo Santos Pompeu Freshwater mollusks as proxies for assessing agrochemicals hazards in Volta Grande Reservoir, Brazil Revista Ambiente & Água bivalve gastropoda high contamination-risk organic agrochemicals pesticides |
author_facet |
Andressa Mendes Sene Daniel Melo Rosa Silvia Maria Millan Gutierre Paulo Santos Pompeu |
author_sort |
Andressa Mendes Sene |
title |
Freshwater mollusks as proxies for assessing agrochemicals hazards in Volta Grande Reservoir, Brazil |
title_short |
Freshwater mollusks as proxies for assessing agrochemicals hazards in Volta Grande Reservoir, Brazil |
title_full |
Freshwater mollusks as proxies for assessing agrochemicals hazards in Volta Grande Reservoir, Brazil |
title_fullStr |
Freshwater mollusks as proxies for assessing agrochemicals hazards in Volta Grande Reservoir, Brazil |
title_full_unstemmed |
Freshwater mollusks as proxies for assessing agrochemicals hazards in Volta Grande Reservoir, Brazil |
title_sort |
freshwater mollusks as proxies for assessing agrochemicals hazards in volta grande reservoir, brazil |
publisher |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) |
series |
Revista Ambiente & Água |
issn |
1980-993X |
publishDate |
2021-06-01 |
description |
Brazil has experienced a rise in the use of agrochemicals in recent years, representing a potential threat to nearby ecosystems. The Volta Grande Reservoir (Minas Gerais/São Paulo, Brazil) has about 87% of its area surrounded by agricultural systems, and many compounds used in agriculture end up being carried into nearby water bodies. Given the potential ecological risk, our purpose was to assess pesticides in the reservoir. We collected specimens of two bivalves and three gastropods using bottom dredging and visual investigation in three different sites within the reservoir. The sampling sites were classified according to their distance from the dam, and all were close to agricultural lands. The samples were processed and frozen for qualitative toxicological analysis using mass spectrophotometry. Eight pesticides were identified, including four organochlorines (Aldrin, p,p’-DDE, Heptachlor epoxide, and Endrin) and organophosphates (Disulfoton, Malathion, Parathion- methyl, and Parathion-ethyl). All five studied species (Limnoperna fortunei, Corbicula fluminea, Melanoides tuberculata, Aylacostoma tenuilabris, and Pomacea aff. canaliculata) presented traces of pesticides in their bodies. Of the eight pesticides found in our analysis, six are illegal in Brazil, raising awareness about the continuous use of forbidden pesticides, and also the ecological risk in the Volta Grande Reservoir area. Our results suggest stricter control by environmental agencies regarding the use and commercialization of these illegal toxic compounds. |
topic |
bivalve gastropoda high contamination-risk organic agrochemicals pesticides |
url |
https://www.scielo.br/j/ambiagua/a/jNFhbCVTCpyhY3pQf3NhfwB/?lang=en |
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