Tracking mercury in the southwestern Atlantic Ocean: the use of tuna and tuna-like species as indicators of bioavailability

Manhães, Bárbara Moura Reis; Picaluga, Alice de Souza; Bisi, Tatiana L.; Azevedo, Alexandre de Freitas; Torres, João Paulo Machado; Malm, Olaf; Lailson‐Brito, José

doi:10.1007/s11356-019-07275-4

Cited by 11 publications

(2 citation statements)

References 52 publications

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“…However, elevated Hg levels were measured in the flesh of different tuna species over the regulated limit in the Ionian Sea (0.49–1.60 mg/kg w.w.) and Atlantic Ocean (0.008–1.3 mg/kg w.w.) [ 61 , 62 ].…”

Section: Resultsmentioning

confidence: 99%

Metal Load of Potentially Toxic Elements in Tuna (Thunnus albacares)—Food Safety Aspects

Lehel

Papp

Bartha

et al. 2023

Foods

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The consumption of marine fishes has a positive effect on a consumer’s health; however, it poses a potential risk due to their level of heavy metals in their body. Heavy metals can be naturally found in the environment, but their concentration can be increased with anthropogenic activities. Samples of tuna (Thunnus albacares) were collected at a fishery market. The potentially toxic elements (arsenic, cadmium, lead, and mercury) were determined with a validated method in the flesh of fish using inductively plasma optical emission spectrometry after microwave digestion. Generally, the average concentration of them was below the official limit values regulated by the European Union, except for lead. Based on the concentrations of arsenic (inorganic derivates: 0.05 ± 0.02 mg/kg) and cadmium (0.03 ± 0.01 mg/kg) in the tuna fish samples, and their calculated EDI values (As: 0.03–0.09 µg/kg/day; Cd: 0.05–0.07 µg/kg/day), the investigated food could be declared safe for human consumption. Generally, mercury content was below the official regulated limit, and the calculated EDI value was below the dietary reference value (0.3 μg/kg/day) in most of the samples (90%), exceeding it only in two samples (0.69 and 0.82 μg/kg/day); thus, they may not be harmful to the consumer. The concentration of lead above the official maximum limit (0.30 mg/kg) in 40% of tuna samples (0.30–1.59 mg/kg), as well as the exceeding of the dietary reference value for lead (adult: 0.16 μg/kg/day; children: 0.26 μg/kg/day) based on the calculated EDI values (0.28–1.49 μg/kg/day), draw attention to the importance of environmental pollution and the protection of consumers’ health.

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Section: Resultsmentioning

confidence: 99%

Metal Load of Potentially Toxic Elements in Tuna (Thunnus albacares)—Food Safety Aspects

Lehel

Papp

Bartha

et al. 2023

Foods

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“…Studies on broad spatial and temporal trends in oceanic mercury concentrations often compare data from tuna species (Drevnick et al, 2015;Houssard et al, 2019;Lee et al, 2016;Manhães et al, 2020). However, given that tuna are widely recognised as opportunistic generalist top predators, feeding facultatively on both epipelagic and mesopelagic prey (Duffy et al, 2017;Olafsdottir et al, 2016), their mercury exposure may reflect the confounding effects of environmental contaminant levels, layers in the ocean where they feed (epi-or mesopelagic) and trophic position (Gatt et al, 2020b).…”

Section: Discussionmentioning

confidence: 99%

Monitoring of mercury in the mesopelagic domain of the Pacific and Atlantic oceans using body feathers of Bulwer's petrel as a bioindicator

Furtado

Granadeiro

Gatt

et al. 2021

Science of The Total Environment

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Species-specific heavy metal concentrations of tuna species: the case of Thunnus alalunga and Katsuwonus pelamis in the Western Mediterranean

Chanto-García

Saber

Macías

et al. 2021

Environ Sci Pollut Res

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Tracking mercury in the southwestern Atlantic Ocean: the use of tuna and tuna-like species as indicators of bioavailability

Cited by 11 publications

References 52 publications

Metal Load of Potentially Toxic Elements in Tuna (Thunnus albacares)—Food Safety Aspects

Metal Load of Potentially Toxic Elements in Tuna (Thunnus albacares)—Food Safety Aspects

Monitoring of mercury in the mesopelagic domain of the Pacific and Atlantic oceans using body feathers of Bulwer's petrel as a bioindicator

Species-specific heavy metal concentrations of tuna species: the case of Thunnus alalunga and Katsuwonus pelamis in the Western Mediterranean

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