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Title: Trophic behavior of inorganic elements in nesting sea turtles (Chelonia mydas, Eretmochelys imbricata, and Caretta caretta) in Quintana Roo: Biomagnification and biodilution effect in blood and scute tissues
Authors: Escobedo Mondragón, Maribel
Pérez Luzardo, Octavio Luis 
Henríquez Hernández, Luis Alberto 
Rodríguez Hernández, Ángel 
Zumbado Peña, Manuel Luis 
Rosiles Martínez, J. René
González Farias, Fernando
Suzán, Gerardo
González-Rebeles Islas, Carlos
UNESCO Clasification: 3214 Toxicología
230331 Química del agua
Keywords: Blood
Caribbean Sea
Emergent Pollutants
Heavy Metals
Inorganic Elements, et al
Issue Date: 2023
Journal: Marine Pollution Bulletin 
Abstract: The biomagnification and biodilution of inorganic pollutants, have a close correlation on the structure and function of trophic change behavior; sea turtles represent an excellent bioindicator model to identify their impact in marine ecosystems. To understand pollution effects on marine ecosystems, we quantified the bioconcentration of 50 inorganic elements in the blood and scute tissues of three nesting species of sea turtles (Chelonia mydas, Eretmochelys imbricata and Caretta caretta), collected in Quintana Roo State from July 2017 to August 2018. As a general trend, essential mineral elements with toxic potential showed the highest concentrations in both tissues; significant increase concentration of arsenic, mercury, and cerium levels was observed with increasing trophic levels indicating its biomagnification while a significant decrease in manganese and bismuth showed a biodilution effect. We expect that our findings can be used as baseline data in future biomonitoring and contamination risk assessment programs in the region.
ISSN: 0025-326X
DOI: 10.1016/j.marpolbul.2023.114582
Source: Marine Pollution Bulletin [ISSN 0025-326X], v. 187, 114582, (Febrero 2023)
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