Mercury in fish tissues from the Galapagos marine reserve: Toxic risk and health implications

Franco-Fuentes, Eduardo; Moity, Nicolás; Ramírez-González, Jorge; Andrade-Vera, Solange; Hardisson, Arturo; Paz, Soraya; Rubio, Carmen Quiñones; Martín, Verónica; Gutiérrez, Ángel J.

doi:10.1016/j.jfca.2022.104969

Cited by 6 publications

(8 citation statements)

References 48 publications

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“…In an study performed by Franco-Fuentes et al, [33] in dolphinfish from the Galapagos Islands, Ecuador, the MoS was below 1, nevertheless, according to the results from this study, Hg content found in the species might come from natural volcanic activity of the Galapagos Islands, differently to our results in which fish species come from the Ecuadorian coast which is principally affected by sources of anthropogenic contamination.…”

Section: Resultscontrasting

confidence: 99%

“…The MoS is a ratio, derived from the scientific laws of toxicology, and from the mathematical laws of statistical analysis, between (a) that dose of a food additive, agricultural residue, or nutritional factor on a body weight basis, that causes a measurable undesirable effect on an appropriate laboratory animal or upon man, and (b) that dose which man eats on a daily basis [62] . A value of MoS > 1 indicates there could be adverse effects derived from fish consumption [33] .…”

Section: Methodsmentioning

confidence: 99%

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Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment

et al. 2023

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Section: Resultscontrasting

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment

et al. 2023

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“…The extremes in mercury values identified at the different sites make it difficult to identify any logical patterns resulting in mercury accumulation in these marine intertidal organisms. The previous work conducted on commercial fish species in the Galápagos region [23] also found significant mercury levels in some species, and it was suggested that due to the lack of Industry on the Galápagos Islands, the mercury contamination in fish could likely have resulted from volcanism. However, the localized high levels of mercury (such as in San Cristóbal harbor) warrant further investigation as to whether human input could be a potential factor.…”

Section: Discussionmentioning

confidence: 99%

“…There is no major industry on the islands contributing to potential sources of mercury, although some mercury pollution could result from populated regions. Due to the remote location of the archipelago, it is unlikely that atmospheric input of mercury is a substantial source of mercury [23].…”

Section: Introductionmentioning

confidence: 99%

Mercury Levels in the Crab Grapsus grapsus across the Galápagos Archipelago

Jackson,

Brandao

et al. 2024

Fishes

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The levels of mercury (Hg) were examined in the leg muscle of the crab Grapsus grapsus from five sites on four islands within the Galápagos archipelago. Mercury values obtained using a Milestone DMA 80 evo direct mercury analyzer varied both within and among sites. Total mercury concentrations (mg kg−1 dry weight) ranged from the lowest at a protected location at Isabela Island (0.06 ± 0.02) to the highest at the San Cristóbal urban location (2.04 ± 0.069). Crabs from South Plaza Island also had surprisingly high levels of mercury with a mean of 1.2 ± 0.6. Values from urban sites at Isabela Island and Academy Bay, Santa Cruz, had intermediate values. When converted to wet weight, crabs from both San Cristóbal and South Plaza were within or above the levels (0.3–0.5 mg kg−1 wet weight set by various government agencies) considered potentially harmful to human health if ingested. A lesser number of both oysters and barnacles were also analyzed for mercury at South Plaza and Academy Bay, and while the values were lower compared to the crabs, they followed the same pattern of elevated levels at South Plaza compared to Academy Bay. It is unclear as to whether the mercury comes from natural sources, such as volcanism, or anthropogenic causes.

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“…The metals can be transferred and biomagnified through food chains, presenting significant risks to human health. Metal contamination in estuarine ecosystems can induce toxic effects in fish and humans, primarily by consuming contaminated food (Franco-Fuentes et al, 2023;Prasad et al, 2023). Therefore, evaluating the occurrence of Fe content in the estuarine ecosystem of South Kalimantan is essential.…”

Section: Introductionmentioning

confidence: 99%

Iron bioaccumulation and ecological implications in the coastal swamp wetlands ecosystem of South Kalimantan: Insights from giant mudskipper fish as bioindicators

Santoso,

Krisdianto,

Yunita

2024

J. Degrade. Min. Land Manage.

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This study investigated iron (Fe) accumulation in South Kalimantan's coastal swamp wetlands ecosystem, utilizing giant mudskipper fish as indicators of heavy metal pollution. By analyzing Fe levels in water, sediment, and fish organs over time, insights into its effects on the environment and human health were gained. Furthermore, through Atomic Absorption Spectrometry, Fe concentrations in Kuala Lupak's coastal wetland were measured, revealing significant correlations between Fe levels in water, sediment, and fish tissues. These results enhance our understanding and inform better management strategies. Anthropogenic and natural sources contribute to the accumulation of heavy metals, particularly Fe, with anthropogenic pollution being the most dominant. This study presented the escalating concentrations of Fe within the Kuala Lupak estuary and raised concerns regarding the ecological and human health implications. Continuous monitoring, source identification, public awareness, regulations, remediation, and long-term exploration are essential for addressing heavy metal pollution and its ecological impact. Therefore, valuable insights are provided for environmental management and conservation efforts.

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Mercury in fish tissues from the Galapagos marine reserve: Toxic risk and health implications

Cited by 6 publications

References 48 publications

Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment

Total mercury and fatty acids content in selected fish marketed in Quito – Ecuador. A benefit-risk assessment

Mercury Levels in the Crab Grapsus grapsus across the Galápagos Archipelago

Iron bioaccumulation and ecological implications in the coastal swamp wetlands ecosystem of South Kalimantan: Insights from giant mudskipper fish as bioindicators

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