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Red Blood Cell Cytotoxicity Associated to Heavy Metals and Hydrocarbons Exposure in Flounder Fish from Two Regions of the Gulf of Mexico

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Abstract

In this study, the genotoxic effect of contaminants was assessed through detection of DNA damage using the micronucleus (MNs) test in erythrocytes from 149 flounder fish collected in two regions of the Gulf of Mexico (GoM). The frequency of microcytes (MCs) was also evaluated in the same group of fish collected from the Perdido Foldbelt (PF) and the Yucatan Platform (YP). The MCs frequency was different among locations of the YP (p = 0.011), while MNs frequency varied among locations of PF (p = 0.024). MCs and MNs values correlated with heavy metals from fish muscle, fish species and localities. Mean number, prevalence, and intensity of MCs and MNs correlated with Al, PAHs, depth, and locality. MNs frequency showed a species-specific association (p = 0.004). MNs and MCs were associated with heavy metals and PAHs from fish muscle and sediments, and the MNs frequency was species dependent.

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Acknowledgements

Special thanks are conveyed to the personnel of the laboratory of Geochemistry (CINVESTAV-Unidad Merida) for processing samples. Research funded by the National Council of Science and Technology of Mexico – Mexican Ministry of Energy – Hydrocarbon Trust, project 201441. This is a contribution of the Gulf of Mexico Research Consortium (CIGoM) and PEMEX. We acknowledge PEMEX´s specific request to the Hydrocarbon Fund to address the environmental effects of oil spills in the Gulf of Mexico. The authors are grateful to the comments of the anonymous reviewers.

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Correspondence to Rossanna Rodríguez-Canul.

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Ek-Huchim, J.P., Árcega-Cabrera, F., May-Tec, A.L. et al. Red Blood Cell Cytotoxicity Associated to Heavy Metals and Hydrocarbons Exposure in Flounder Fish from Two Regions of the Gulf of Mexico. Bull Environ Contam Toxicol 108, 78–84 (2022). https://doi.org/10.1007/s00128-021-03176-w

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  • DOI: https://doi.org/10.1007/s00128-021-03176-w

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