Interactions between mercury and environmental factors: A chemometric assessment in seafood from an eutrophic estuary in southeastern Brazil

Rodrigues, Paloma de Almeida; Ferrari, Rafaela Gomes; Rosário, Denes Kaic Alves do; Hauser‐Davis, Rachel Ann; Lopes, Amanda Pontes; Santos, Luciano Neves dos; Conté-Júnior, Carlos Adam

doi:10.1016/j.aquatox.2021.105844

Cited by 8 publications

(4 citation statements)

References 80 publications

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“…Still, on the aspects that can influence the concentration of the contaminant, in addition to the biotic part, there are also abiotic factors, such as water temperature, salinity, oxygenation and pH. These factors were not evaluated in this study; however, based on other previously published studies, it is possible to indicate that such factors are responsible for influencing the bioavailability, speciation, and toxicity of Hg in the Guanabara Bay region (Rodrigues et al, 2019b;Rodrigues et al, 2020;Rodrigues et al, 2021b). The salinity of BG varies between 31 and 35 g.L -1 , being closer to the salinity of the marine environment, while the pH is around 8, indicating an alkaline environment (Rodrigues et al, 2021b).…”

Section: Resultsmentioning

confidence: 95%

“…These factors were not evaluated in this study; however, based on other previously published studies, it is possible to indicate that such factors are responsible for influencing the bioavailability, speciation, and toxicity of Hg in the Guanabara Bay region (Rodrigues et al, 2019b;Rodrigues et al, 2020;Rodrigues et al, 2021b). The salinity of BG varies between 31 and 35 g.L -1 , being closer to the salinity of the marine environment, while the pH is around 8, indicating an alkaline environment (Rodrigues et al, 2021b). Environments with such a salinity rate have a lower concentration of Hg when compared to freshwater habitats.…”

Section: Resultsmentioning

confidence: 99%

“…As for pH, the bioavailability of Hg is increased in environments where it tends to be acidity (Wang et al, 2010;Dong et al, 2016;Reinhart et al, 2018;Costa et al, 2019). As for BG temperature, varies between 17 and 25°C, and oxygenation between 3 and 6 mg.L -1 (Rodrigues et al, 2021b). Temperature influences animal metabolism, with higher temperatures responsible for promoting greater excretion of metals such as Hg (Ando et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

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Mercurial Contamination: A Consumer Health Risk Assessment Concerning Seafood From a Eutrophic Estuary in Southeastern Brazil

et al. 2022

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Mercury (Hg) contamination has increased in the last decades, resulting in human consumption concerns mainly in developing countries. In this context, this study aimed to carry out a health risk assessment regarding the consumption of swimming crabs, shrimp and squid species caught in different regions of the Guanabara Bay, Rio de Janeiro, Brazil. For this purpose, we used calculations that indicated the Estimated Monthly Intake (EMI), Maximum Monthly Intake Rate (IRmm) and Hazard Quotient (HQ). As the target population, the mean weight corresponding to men and women children aged 12 years, young people aged 24 years, and middle-aged people (adults) aged 54 years were used, taking into account the female and male gender. In the studied seafood, the EMI (0.0001 to 0.0006 mg.kg.month-1) was below the monthly intake limit and IRmm (10.3 to 34.8 kg month-1) indicates that large quantities of seafood can be consumed by the population studied, unless the safe limit of monthly intake of the contaminant is reached. The hazard quotient (0.4 to 1.4) indicate potential risks health of children eating swimming crabs and squid and young women eating swimming crabs. Our study also highlights the importance of risk assessments, as even when seafood contains Hg concentrations below established limits, consumption variables must be taken into account, so as not to underestimate the potential health risks.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Mercurial Contamination: A Consumer Health Risk Assessment Concerning Seafood From a Eutrophic Estuary in Southeastern Brazil

et al. 2022

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“…Regarding the sustainability of swimming crabs, in addition to the fishing activity itself, many authors reported threats to these crustaceans, such as their presence as bycatch in shrimp fishing (Branco and Fracasso, 2004;Keunecke et al, 2012;Tudesco et al, 2012;Santos et al, 2016), the possible competition with the non-indigenous crab Charybdis hellerii (A. Milne-Edwards, 1867) for resources, and the presence of metals (e.g., Cu, Pb, Zn, Cd, and Hg) in males, females, and eggs (Lavradas et al, 2014;Rodrigues et al, 2021). Finally, Peres et al (2020) highlighted that economically important crabs along the Brazilian coast (e.g., C. danae and Callinectes sapidus Rathbun, 1896) lack genetic structure among Brazilian populations and can be considered a single genetic stock.…”

Section: Introductionmentioning

confidence: 99%

Sexual maturity of Callinectes danae and C. ornatus from Paraguaçu river estuary, Bahia state, Brazil

et al. 2022

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Callinectes danae and C. ornatus are economically important species in several countries, including Brazil. Therefore, this study aimed to estimate the L50 of these species using morphological, morphometric, and physiological data. The estimated values were statically compared and results from previous studies were analyzed to verify latitudinal variations among the sizes of sexual maturity at different latitudes of the Brazilian coast. Individuals were monthly collected in the Paraguaçu River estuary from August 2013 to July 2014, using cage traps. L50 estimates for C. danae were morphological=55.80 mm, morphometric=59.04, mm, and physiological=60.41 mm for males and morphological=54.63 mm, morphometric=55.33 mm, and physiological=57.29 mm for females. Considering C. ornatus, estimates were morphological=42.63 mm, morphometric=50.81 mm, and physiological=43.95 mm for males and morphological=42.33 mm, morphometric=42.75 mm, and physiological=40.43 mm for females. Our results indicated that the minimum catch sizes should be equal to 61.00 mm for C. danae and 51.00 for C. ornatus and that the mesh of traps used by fishermen must be adjusted to prevent the capture of immature animals.

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Mercury contamination in seafood from an aquatic environment impacted by anthropic activity: seasonality and human health risk

Rodrigues,

de Pinho,

Ramos-Filho

et al. 2023

Environ Sci Pollut Res

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Interactions between mercury and environmental factors: A chemometric assessment in seafood from an eutrophic estuary in southeastern Brazil

Cited by 8 publications

References 80 publications

Mercurial Contamination: A Consumer Health Risk Assessment Concerning Seafood From a Eutrophic Estuary in Southeastern Brazil

Mercurial Contamination: A Consumer Health Risk Assessment Concerning Seafood From a Eutrophic Estuary in Southeastern Brazil

Sexual maturity of Callinectes danae and C. ornatus from Paraguaçu river estuary, Bahia state, Brazil

Mercury contamination in seafood from an aquatic environment impacted by anthropic activity: seasonality and human health risk

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