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From field to plate : agricultural pesticide presence in the guayas estuary (Ecuador) and commercial mangrove crabs

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Abstract
Mangroves are unique coastal ecosystems, located in tropical and subtropical regions. Yet, the functioning of these essential ecosystems is threatened by the presence of pollutants, including pesticides originating from agricultural activities. We investigated pesticide residues in the Guayas estuarine environment, since agricultural activities rapidly increased in the Guayas river basin over the past decades. A multi-residue analysis involving a selection of 88 pesticides was performed on the white meat and the hepatopancreas of the red mangrove crab (Ucides Occidentalis) at 15 sampling sites within the Guayas estuary along with water, sediment, and leaves samples. We found that 35 active compounds were present in the Guayas estuary, of which pyrimethanil was most commonly detected and had the highest concentrations in almost all compartments. Also, cadusafos was present in all studied compartments of the Guayas mangrove system and several prohibited pesticides (including carbendazim, carbofuran, and parathion) were detected. An ecotoxicological and probabilistic consumer risk assessment pointed out that current butachlor, carbendazim, and fludioxonil concentrations can cause adverse effects in aquatic organisms in the long term. Moreover, high potential acute and chronic risks of cadusafos residues on aquatic invertebrates and of diuron on algae in the Guayas wetlands were observed. Still, the exposure results indicated that the health risk for the consumers of the commercial red mangrove crab is low concerning cadusafos, chlorpyrifos, diuron, linuron, and pyrimethanil residues in crab tissues. The findings presented in this research can provide a useful basis for local water managers and environmental conservation groups to act and reduce the usage of pesticides, to avoid threatening aquatic and human health.
Keywords
Broad-spectrum pesticide analysis, Guayas estuary, Ecotoxicological risk, Consumer risk, AQUATIC RISK-ASSESSMENT, SURFACE WATERS, ORGANOCHLORINE PESTICIDES, MOLT CYCLE, SEDIMENTS, TOXICITY, PYRIMETHANIL, DIURON, ALGAE, FISH

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Citation

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MLA
De Cock, Andrée, et al. “From Field to Plate : Agricultural Pesticide Presence in the Guayas Estuary (Ecuador) and Commercial Mangrove Crabs.” ENVIRONMENTAL POLLUTION, vol. 289, 2021, doi:10.1016/j.envpol.2021.117955.
APA
De Cock, A., Forio, M. A. E., De Troyer, N., García Arévalo, I., Deknock, A., Van Echelpoel, W., … Goethals, P. (2021). From field to plate : agricultural pesticide presence in the guayas estuary (Ecuador) and commercial mangrove crabs. ENVIRONMENTAL POLLUTION, 289. https://doi.org/10.1016/j.envpol.2021.117955
Chicago author-date
De Cock, Andrée, Marie Anne Eurie Forio, Niels De Troyer, Isabel García Arévalo, Arne Deknock, Wout Van Echelpoel, Lenin Riascos Flores, et al. 2021. “From Field to Plate : Agricultural Pesticide Presence in the Guayas Estuary (Ecuador) and Commercial Mangrove Crabs.” ENVIRONMENTAL POLLUTION 289. https://doi.org/10.1016/j.envpol.2021.117955.
Chicago author-date (all authors)
De Cock, Andrée, Marie Anne Eurie Forio, Niels De Troyer, Isabel García Arévalo, Arne Deknock, Wout Van Echelpoel, Lenin Riascos Flores, Jasmine De Rop, Liesbeth Jacxsens, Pieter Spanoghe, Luis Dominguez Granda, and Peter Goethals. 2021. “From Field to Plate : Agricultural Pesticide Presence in the Guayas Estuary (Ecuador) and Commercial Mangrove Crabs.” ENVIRONMENTAL POLLUTION 289. doi:10.1016/j.envpol.2021.117955.
Vancouver
1.
De Cock A, Forio MAE, De Troyer N, García Arévalo I, Deknock A, Van Echelpoel W, et al. From field to plate : agricultural pesticide presence in the guayas estuary (Ecuador) and commercial mangrove crabs. ENVIRONMENTAL POLLUTION. 2021;289.
IEEE
[1]
A. De Cock et al., “From field to plate : agricultural pesticide presence in the guayas estuary (Ecuador) and commercial mangrove crabs,” ENVIRONMENTAL POLLUTION, vol. 289, 2021.
@article{8717768,
  abstract     = {{Mangroves are unique coastal ecosystems, located in tropical and subtropical regions. Yet, the functioning of these essential ecosystems is threatened by the presence of pollutants, including pesticides originating from agricultural activities. We investigated pesticide residues in the Guayas estuarine environment, since agricultural activities rapidly increased in the Guayas river basin over the past decades. A multi-residue analysis involving a selection of 88 pesticides was performed on the white meat and the hepatopancreas of the red mangrove crab (Ucides Occidentalis) at 15 sampling sites within the Guayas estuary along with water, sediment, and leaves samples. We found that 35 active compounds were present in the Guayas estuary, of which pyrimethanil was most commonly detected and had the highest concentrations in almost all compartments. Also, cadusafos was present in all studied compartments of the Guayas mangrove system and several prohibited pesticides (including carbendazim, carbofuran, and parathion) were detected. An ecotoxicological and probabilistic consumer risk assessment pointed out that current butachlor, carbendazim, and fludioxonil concentrations can cause adverse effects in aquatic organisms in the long term. Moreover, high potential acute and chronic risks of cadusafos residues on aquatic invertebrates and of diuron on algae in the Guayas wetlands were observed. Still, the exposure results indicated that the health risk for the consumers of the commercial red mangrove crab is low concerning cadusafos, chlorpyrifos, diuron, linuron, and pyrimethanil residues in crab tissues. The findings presented in this research can provide a useful basis for local water managers and environmental conservation groups to act and reduce the usage of pesticides, to avoid threatening aquatic and human health.}},
  articleno    = {{117955}},
  author       = {{De Cock, Andrée and Forio, Marie Anne Eurie and De Troyer, Niels and García Arévalo, Isabel and Deknock, Arne and Van Echelpoel, Wout and Riascos Flores, Lenin and De Rop, Jasmine and Jacxsens, Liesbeth and Spanoghe, Pieter and Dominguez Granda, Luis and Goethals, Peter}},
  issn         = {{0269-7491}},
  journal      = {{ENVIRONMENTAL POLLUTION}},
  keywords     = {{Broad-spectrum pesticide analysis,Guayas estuary,Ecotoxicological risk,Consumer risk,AQUATIC RISK-ASSESSMENT,SURFACE WATERS,ORGANOCHLORINE PESTICIDES,MOLT CYCLE,SEDIMENTS,TOXICITY,PYRIMETHANIL,DIURON,ALGAE,FISH}},
  language     = {{eng}},
  pages        = {{9}},
  title        = {{From field to plate : agricultural pesticide presence in the guayas estuary (Ecuador) and commercial mangrove crabs}},
  url          = {{http://dx.doi.org/10.1016/j.envpol.2021.117955}},
  volume       = {{289}},
  year         = {{2021}},
}

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