TRACE METALS IN TWO WILD POPULATIONS OF THE SQUALID CALLISTA CLAM (Megapitaria squalida) IN THE SOUTHEASTERN GULF OF CALIFORNIA, MEXICO

Sepúlveda, Carlos Humberto; Góngora-Gómez, Andrés Martín; Álvarez-Pérez, Sandra; Rodríguez‐González, Hervey; Villanueva-Fonseca, Brenda Paulina; Hernández-Sepúlveda, Juan Antonio; García-Ulloa, Manuel

doi:10.20937/rica.53565

Cited by 7 publications

(4 citation statements)

References 29 publications

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“…The Ni concentration (8.06 mg kg −1 dw) of the edible tissue of Sphoeroides spp. were higher to those reported in recent studies on other marine species of the region 35 , 60 , 67 – 69 (Table 3 ). However, the concentration of Ni in predatory fishes has been reported to be slightly higher than those in herbivorous and omnivorous species 66 .…”

Section: Discussioncontrasting

confidence: 76%

Health risk of consuming Sphoeroides spp. from the Navachiste Lagoon complex due to its trace metals and organochlorine pesticides content

Muñoz-Armenta

Pérez-González

Rodríguez-Meza

et al. 2022

Sci Rep

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The Navachiste complex (NAV) is impacted by neighbored human activities and is located in the southwestern coastal zone of the Gulf of California. The study determines the trace metal (TM) and organochlorine pesticides (OCP) health risk content in the edible tissue of Sphoeroides spp. from NAV. The daily intakes (EDI), target hazard quotient (THQ), hazard index (HI), and carcinogenic and non-carcinogenic risks were calculated. Twenty OCP and seven TM were detected. Cd, Cu, Fe, Mn, Pb, and Zn were above MRLs. The γ‒Chlordane was the most frequent OCP. The highest average concentration was for α‒HCH, followed by γ‒chlordane. With the high ratios of γ‒HCH, p, p′‒ DDD and p, p′‒DDD, and the absence of p, p′‒ DDT, the higher ratios for dieldrin and endrin than for aldrin, α‒ chlordane, γ‒chlordane, heptachlor, and heptachlor epoxide indicates historical contamination. In contrast, the residual products of methoxychlor, endosulfan, and its isomers indicate endosulfan's recent use. The TM EDI, THQ > 1 (at 120 g day−1), and the ILCR (> 1 × 10–6) were above minimum levels, showing a high-risk potential for cancer development in the long term.

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Section: Discussioncontrasting

confidence: 76%

Health risk of consuming Sphoeroides spp. from the Navachiste Lagoon complex due to its trace metals and organochlorine pesticides content

Muñoz-Armenta

Pérez-González

Rodríguez-Meza

et al. 2022

Sci Rep

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“…However, oyster species did not coexist at all sampling sites; therefore, S. palmula was collected in six sites and C. corteziensis in nine. From each site and by species, 105 oysters were selected (75 for Hg and Se analysis and 30 for condition index determination, CI; Muñoz-Sevilla et al 2017) with a length interval of 60 to 90 mm, to avoid variability in metal content due to differences in specimen size (Sepúlveda et al 2020).…”

Section: Field Samplingmentioning

confidence: 99%

“…Also, Hg concentration can vary among oyster species due to biological aspects, related to their metabolic activity, ). Therefore, it is possible to infer that the sediments in the study area could be one of the most important routes of Hg accumulation in these bivalves (Sepúlveda et al 2020).…”

Section: Health Risk Assessmentmentioning

confidence: 99%

Mercury and selenium concentrations in the oysters Saccostrea palmula and Crassostrea corteziensis from four coastal lagoons of NW Mexico: health risk assessment

Sepúlveda

Sotelo-Gonzalez

Osuna-Martínez

et al. 2021

Preprint

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Mercury (Hg) and selenium (Se) concentrations in the soft tissue of the oysters Saccostrea palmula and Crassostrea corteziensis from four coastal lagoons (Altata, Macapule, Navachiste, El Colorado) of Northwest Mexico were determined. A total of 2520 specimens of S. palmula and 3780 of C. corteziensis (72.15 ± 4.95 and 73.57 ± 5.31 mm, respectively) were sampled seasonally from summer 2019 to spring 2020. The higher Hg concentration (wet weight) for S. palmula (0.13 ± 0.03–0.11 ± 0.02 µg g−1) and C. corteziensis (0.12 ± 0.02–0.11 ± 0.03 µg g−1) were obtained in summer−autumn 2019; Hg level was similar among the coastal lagoons and did not exceed the limit established by Mexican legislation and by the Food and Drug Agency. The higher Se concentration occurred in spring 2020 for both oyster species in El Colorado lagoon (4.55 ± 0.02 and 4.08 ± 0.05 µg g−1, respectively). The Se/Hg molar ratio of S. palmula and C. corteziensis ranged from 48.76–149.59 and 31.72–155.37, respectively; while the Se health benefit value was 19.23–42.28 and 17.82–35.30, respectively. The hazard quotient for Hg -estimated as methylmercury- and Se in both species of oyster was below 1. The high molar ratio obtained (Se/Hg > 1) indicates that the concentration of Se was sufficient to neutralize the possible toxicity of the Hg, therefore, the consumption of S. palmula and C. corteziensis from the four coastal lagoons studied does not represent a risk.

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“…and on rocky surfaces, exposed and/or buried in muddy sediments(Lodeiros et al 2020) with a high content of organic matter, which favors retention of metals, such as Hg (Rojas deAstudillo et al 2005). Therefore, it is possible to infer that the sediments in the study area could be one of the most important routes of Hg accumulation in these bivalves(Sepúlveda et al 2020). Despite the natural sources and anthropogenic activities that contribute with Hg deposition in the coastal lagoons of NW Mexico, the Hg concentration in S. palmula and C. corteziensis was below the maximum permissible limit of 1.0 µg g − 1 (wet weight) established by the Mexican legislation (Norma O cial Mexicana NOM-031-SSA1-1993), the World Health Organization (WHO 1982), and the United States Food and Drug Agency(FDA 2006), which indicates that the consumption of these species from the sampled lagoons does not represent a risk to human health with respect to Hg poisoning.On the other hand, the annual mean concentration of Se for S. palmula (3.34 ± 0.96 µg g − 1 ) and C. corteziensis (2.79 ± 0.89 µg g − 1 ) was higher (p < 0.05) in ECL9 (Table3).…”

mentioning

confidence: 99%

Mercury and selenium concentrations in the oysters Saccostrea palmula and Crassostrea corteziensis from coastal lagoons of Northwest Mexico and the risk assessment on human health

Sepúlveda

Gonzalez

García-Ulloa

et al. 2022

Preprint

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The toxicity of mercury (Hg) in bivalves can be reduced when it is associated with selenium (Se) as mercury selenide, a stable non-toxic compound. Mercury and Se were seasonally studied (summer 2019-spring 2020) in the soft tissue of oysters Saccostrea palmula and Crassostrea corteziensis from four coastal lagoons of Northwest Mexico. The higher Hg concentration (≈ 0.13 µg g−1, wet weight) in both oyster species were obtained in summer−autumn 2019. Mercury level was similar among the coastal lagoons and did not exceed the limit established by the Norma Official Mexicana, the World Health Organization, and the Food and Drug Agency (< 1.0 μg g−1 Hg). The higher Se concentration (≈ 4.55 µg g−1) occurred in spring 2020 for both oyster species. Regarding Se/Hg molar ratios, they were above 1; the positive selenium health benefit value index suggested that Se concentration in oysters could reduce the potential toxic effect of Hg; and the hazard quotient for Hg (methylmercury) and Se in both species was below 1. Therefore, the consumption of S. palmula and C. corteziensis not represented a risk due to Hg ingestion. Continuous monitoring of the Se/Hg ratio is recommended in oysters from NW Mexico for a more precise assessment of human health risk.

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TRACE METALS IN TWO WILD POPULATIONS OF THE SQUALID CALLISTA CLAM (Megapitaria squalida) IN THE SOUTHEASTERN GULF OF CALIFORNIA, MEXICO

Abstract: Metales traza en dos poblaciones silvestres de la almeja callista escuálida (Megapitaria squalida) en el sureste del Golfo de California, México

Cited by 7 publications

References 29 publications

Health risk of consuming Sphoeroides spp. from the Navachiste Lagoon complex due to its trace metals and organochlorine pesticides content

Health risk of consuming Sphoeroides spp. from the Navachiste Lagoon complex due to its trace metals and organochlorine pesticides content

Mercury and selenium concentrations in the oysters Saccostrea palmula and Crassostrea corteziensis from four coastal lagoons of NW Mexico: health risk assessment

Mercury and selenium concentrations in the oysters Saccostrea palmula and Crassostrea corteziensis from coastal lagoons of Northwest Mexico and the risk assessment on human health

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