Levels of perfluorinated acids (PFCAs) in different tissues of Lepidochelys olivacea sea turtles from the Escobilla beach (Oaxaca, Mexico)

Pasanisi, Eugenia; Cortés-Gómez, Adriana A.; Pérez-López, Marcos; Soler, Francisco; Hernández‐Moreno, David; Guerranti, Cristiana; Martellini, Tania; Fuentes-Mascorro, Gisela; Romero, Diego; Cincinelli, Alessandra

doi:10.1016/j.scitotenv.2016.08.013

Cited by 12 publications

(7 citation statements)

References 37 publications

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“…33 Data extraction and conversion were conducted twice, each time by an independent researcher, to minimize errors in data entry. Four publications, although matching our search criteria and containing potentially relevant data, were excluded because (1) uncertainties involved in converting concentrations on a dry weight basis to lipid basis were considered too high; 34 (2) sampled tissues could not be related to specific individuals; 35 or (3) all compounds analyzed occurred in concentrations below detection limits. 36,37 While some data points represented concentrations within individual turtles, others represented averages across a group of turtles.…”

Section: Methodsmentioning

confidence: 99%

Internal and Maternal Distribution of Persistent Organic Pollutants in Sea Turtle Tissues: A Meta-Analysis

Muñoz

Hendriks

Ragas

et al. 2021

Environ. Sci. Technol.

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We aimed to identify patterns in the internal distribution of persistent organic pollutants (POPs) and assess contributing factors using sea turtles and their offspring as a case study of a long-lived wildlife species. We systematically synthesized 40 years of data and developed a lipid database to test whether lipid-normalized POP concentrations are equal among tissues as expected under steady state for lipophilic compounds. Results supported equal partitioning among tissues with high blood flow or perfusion including the heart, kidney, muscle, and lung. Observed differences in the brain, fat, and blood plasma, however, suggest the physiological influence of the blood–brain barrier, limited perfusion, and protein content, respectively. Polybrominated diphenyl ethers partitioned comparably to legacy POPs. Polycyclic aromatic hydrocarbons, meanwhile, partitioned more into the lung, colon, and muscle compared to the liver under chronic and acute field exposure. Partitioning ratios of individual POPs among tissues were significantly related to the lipophilicity of compounds (as estimated by K ow ) in half of the observed cases, and significant differences between juveniles and adults underscore physiological differences across life stages. The comprehensive tissue partitioning patterns presented here provide a quantitative basis to support comparative assessments of POP pollution derived from biomonitoring among multiple tissues.

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Section: Methodsmentioning

confidence: 99%

Internal and Maternal Distribution of Persistent Organic Pollutants in Sea Turtle Tissues: A Meta-Analysis

Muñoz

Hendriks

Ragas

et al. 2021

Environ. Sci. Technol.

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“…Not only do PFAS appear to be toxic in terrestrial mammals, there is significant evidence that PFAS accumulate and have toxic effects in aquatic mammals, birds, fish, amphibians, reptiles, and numerous invertebrates [91,148,[151][152][153][154][155]. In detailed studies of the Great Lakes region of the US, PFAS have been reported in various trophic levels of the aquatic food chain with concentrations of PFAS in benthic invertebrates 1000-fold greater that the surrounding water and biomagnification factors of 5-10 between the livers of salmon and the livers of eagles and mink [82].…”

Section: Health Impacts Of Pfas 61 Animal Toxicology Studiesmentioning

confidence: 99%

Legacy and Emerging Per- and Polyfluoroalkyl Substances: Analytical Techniques, Environmental Fate, and Health Effects

Brase

Mullin

Spink

2021

IJMS

157

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Due to their unique chemical properties, per- and polyfluoroalkyl substances (PFAS) have been used extensively as industrial surfactants and processing aids. While several types of PFAS have been voluntarily phased out by their manufacturers, these chemicals continue to be of ecological and public health concern due to their persistence in the environment and their presence in living organisms. Moreover, while the compounds referred to as “legacy” PFAS remain in the environment, alternative compounds have emerged as replacements for their legacy predecessors and are now detected in numerous matrices. In this review, we discuss the historical uses of PFAS, recent advances in analytical techniques for analysis of these compounds, and the fate of PFAS in the environment. In addition, we evaluate current biomonitoring studies of human exposure to legacy and emerging PFAS and examine the associations of PFAS exposure with human health impacts, including cancer- and non-cancer-related outcomes. Special focus is given to short-chain perfluoroalkyl acids (PFAAs) and ether-substituted, polyfluoroalkyl alternatives including hexafluoropropylene oxide dimer acid (HFPO-DA; tradename GenX), 4,8-dioxa-3H-perfluorononanoic acid (DONA), and 6:2 chlorinated polyfluoroethersulfonic acid (6:2 Cl-PFESA; tradename F-53B).

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“…In 1990, the Mexican government implemented a ban on all commercial sea turtle fishing (DOF 1990), which has enabled population recovery (Márquez et al 2007). Al though these results are encouraging, the assessment of the global olive ridley populations by the International Union for Conservation of Nature (IUCN) reports a reduction between 31 and 36% in the annual number of nesting females, which means that olive ridley turtles are facing a high risk of extinction in the medium-to long-term future (Abreu-Grobois & Plotkin 2008, Pasanisi et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Within-season shifts in multiple paternity patterns in mass-nesting olive ridley sea turtles

González-Cortés

Labastida‐Estrada

Karam-Martínez

et al. 2021

Endang. Species. Res.

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Multiple paternity is common to all sea turtle species, but its causes and consequences are hard to ascertain and the behaviors and success of males difficult to observe. This study aims to describe patterns of multiple paternity for olive ridley turtles Lepidochelys olivacea at Playa de Escobilla, an ‘arribada’ (mass-nesting) site on the Mexican Pacific coast with over a million clutches laid each reproductive season. A total of 15 females and their hatchlings were sampled during 3 arribada events which occurred over the 2016-2017 nesting season. Females and hatchlings (N = 329) were genotyped at 5 microsatellite loci, from which we inferred the alleles of 46 contributing males. Multiple paternity was detected in 60% of the analyzed clutches, which were sired by a range of 2 to 7 males. Multiple paternity rates differed significantly across arribada events, suggesting more males achieved fertilizations earlier in the breeding season. Paternal contribution in 6 of the clutches with multiple paternity was skewed towards a single male; the remaining clutches had a homogeneous male contribution. However, our results are based on relatively small within-arribada sample sizes. The frequency of multiple paternity among turtle clutches laid on this arribada beach could be related to the density of breeding individuals in the reproductive patch off Playa de Escobilla, rather than to the nesting population size or female size.

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Levels of perfluorinated acids (PFCAs) in different tissues of Lepidochelys olivacea sea turtles from the Escobilla beach (Oaxaca, Mexico)

Cited by 12 publications

References 37 publications

Internal and Maternal Distribution of Persistent Organic Pollutants in Sea Turtle Tissues: A Meta-Analysis

Internal and Maternal Distribution of Persistent Organic Pollutants in Sea Turtle Tissues: A Meta-Analysis

Legacy and Emerging Per- and Polyfluoroalkyl Substances: Analytical Techniques, Environmental Fate, and Health Effects

Within-season shifts in multiple paternity patterns in mass-nesting olive ridley sea turtles

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