Detection of organochlorine pesticides in infertile eggs of crocodylus acutus from sinaloa.

Autor: Pérez-González E; Departamento de Medio Ambiente, Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional unidad Sinaloa (IPN-CIIDIR-Sinaloa), Guasave, Sinaloa, Mexico. eperezg@ipn.mx.; Centro de Estudios 'Justo Sierra', Graduate Program, Surutato, Badiraguato, Sinaloa, Mexico. eperezg@ipn.mx., Quintero-Borquez IP; Undergraduate Biology Student, Instituto Tecnológico de Los Mochis, Los Mochis, Sinaloa, Mexico., Herrera-Moreno MN; Departamento de Medio Ambiente, Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional unidad Sinaloa (IPN-CIIDIR-Sinaloa), Guasave, Sinaloa, Mexico., Ley-Quiñónez CP; Departamento de Medio Ambiente, Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional unidad Sinaloa (IPN-CIIDIR-Sinaloa), Guasave, Sinaloa, Mexico., Polanco-Torres A; Departamento de Medio Ambiente, Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional unidad Sinaloa (IPN-CIIDIR-Sinaloa), Guasave, Sinaloa, Mexico., González-Ocampo HA; Departamento de Medio Ambiente, Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional unidad Sinaloa (IPN-CIIDIR-Sinaloa), Guasave, Sinaloa, Mexico., Llanes-Cárdenas O; Departamento de Medio Ambiente, Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional unidad Sinaloa (IPN-CIIDIR-Sinaloa), Guasave, Sinaloa, Mexico., Salomón-Soto VM; Centro de Estudios 'Justo Sierra', Graduate Program, Surutato, Badiraguato, Sinaloa, Mexico.; Facultad de Biología, Universidad Autónoma de Sinaloa, Culiacan, Sinaloa, Mexico.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Feb 20. Date of Electronic Publication: 2024 Feb 20.
DOI: 10.1007/s11356-024-32147-x
Abstrakt: Environmental contaminants endanger human health and non-target organisms such as crocodiles (Crocodylus acutus) that live in aquatic bodies surrounding agricultural areas. Due to their intrinsic characteristics, these organisms could be bioaccumulating and transmitting organochlorine pesticides (OCs) to their eggs. The objectives of this study were to determine the OCs in infertile eggs of C. acutus from Sinaloa and their correlation with the morphometric characteristics (MC), and to perform a preliminary estimate of the ecological risk due to the presence of pesticides using the PERPEST model. In June 2022, 76 infertile eggs (Ie) were collected: 57 from wild areas (Wa) and 19 from a crocodile farm (CSMf). Determination of OC in Ie was performed according to the USEPA method 8081b, modified. The observed percentages of Ie in Wa were 31.48% and 21.33% in CSMf. Twenty OCs were detected in the Ie, where dieldrin recorded the highest average concentration in Wa (6542.6 ng/g), and endosulfan-II in the CSMf (2172.8 ng/g). Bad negative and positive correlations were observed between OCs and MC, standing out the correlations between endosulfan-II and %Ie (-0.688) in the Wa, Cedritos drain, and between endrin and the weight of Ie (0.786) of the CSMf. The evaluation of the ecological risks of the aquatic environment due to the presence of OCs follow the sequence cyclodienes > aromatic > alicyclic hydrocarbons. A potential risk to the endocrine health of the species C. acutus was observed. Crocodiles are excellent biological models for monitoring the effects of OCs.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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