Drying Characteristics and Heavy Metal Levels in Three Marine Fishes Commercialized in Brazil / Características De Secagem E Teor De Metais Pesados Em Três Espécies De Peixes Marinhos Comercializados No Brasil

Oliveira, Joane Grassi de; Poletto, Matheus

doi:10.34117/bjdv6n10-206

Cited by 2 publications

(1 citation statement)

References 25 publications

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“…More recently, Trevisani (2019) [25] found exceedances of arsenic, chromium, and selenium for fish in three estuaries in southeast Brazil. Exceeding levels of arsenic, mercury, and chromium in commercialized fish in Brazil led Oliveira (2020) to recommend monitoring programs in Brazil to prevent the ingestion of fish meat with high levels of toxic metals [26]. Da Silva et al (2021) [27] detected high levels of arsenic in a majority of marine fish species marketed in Bahia (northeastern Brazil), which indicated a potential risk of consumption of these species.…”

Section: Resultsmentioning

confidence: 99%

Comparative Analysis of Metals in Seafood from Rio Doce Coastal Areas and Regional Fish Markets

Odle,

Da Silva,

Marques

et al. 2023

JEP

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On November 5, 2015, the Fundão Dam breached (the "Event"), releasing water, tailings, dam construction material, and debris to downstream watercourses. Over 20 million cubic meters of fine particles from the tailings, as well as scoured soil and sediments, reached the Rio Doce estuary and surrounding marine area 17 days later. Fishing was banned by the Federal Court of Espírito Santo in February 2016. The fishing ban area included the coastal area near the mouth of the Rio Doce and seaward to a depth of 25 meters, south to Barra do Riacho, and north to Degredo Beach. In June 2019, the Brazilian health agency, Anvisa, published a risk assessment for fish consumption which recommended daily consumption limits for fish of 200 grams for adults and 50 grams for children for both continental and coastal areas of the Rio Doce basin. Comparative analyses were performed between metal concentrations in marine fish and crustaceans collected in the banned fishing area to reference areas and commercialized seafood markets along the Brazilian coast. The results reveal that metals detected in seafood tissue collected in the fishing ban area are not significantly different than other reference areas or from commercially available seafood. This result indicates that elevated metal concentrations in seafood are a regional problem, unrelated to the Event. Higher concentrations of metals in fish in reference areas outside of the fishing ban area as well as in commercial seafood markets demonstrates that the risk management approach of a localized fishing ban is ineffective for reducing risk to the population related to seafood consumption.

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Section: Resultsmentioning

confidence: 99%

Comparative Analysis of Metals in Seafood from Rio Doce Coastal Areas and Regional Fish Markets

Odle,

Da Silva,

Marques

et al. 2023

JEP

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Aquatic pollutants are associated with reproductive alterations and genotoxicity in estuarine fish (Sciades herzbergii - Bloch, 1794) from the Amazon Equatorial Coast

et al. 2022

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Estuaries are constantly subject to continuous environmental impacts of human activities, such as fisheries, port or industry, and domestic sewage, with fish being one of the most affected aquatic animals, reflecting the impacts directly on their bodies. Thus, the aim of this study was to carry out the biomonitoring of an estuary located on the Amazonian Equatorial Coast through analysis of PAHs (Polycyclic Aromatic Hydrocarbons) in the water, in addition to trace metals, histopathological alterations and analysis of erythrocyte micronuclei in Sciades herzbergii. S. herzbergii was used as a model species, due to its estuarine-resident behavior. Gonad and gill samples were subjected to histopathological evaluations. The quantification of trace metals was performed in samples of skeletal muscles of the animals collected, where concentrations of Lead (Pb), Copper (Cu), Zinc (Zn), Cadmium (Cd), Magnesium (Mg), Iron (Fe) and Aluminum (Al) were found. Except for Cadmium (Cd), all the concentrations were above the recommended limits. The PAHs analysis revealed the presence of Naphthalene and Acenaphthene in the water samples Histopathological and genotoxic analyses revealed of lesions in 100% of the study specimens. Thus, the histological and genotoxic alterations found in 100% of S. herzbergii specimens captured in São José Bay-MA are potentially associated with PAH concentrations present in the water. These results are potentially associated with the presence of PAH and trace metals, both in water and in animal tissues, inferring a general scenario of environmental contamination which directly implies a risk to the health and survival of the local biota. This study shows the relevance of continuous biomonitoring of estuarine ecosystems, in order to guide authorities regarding sewage management and ensure the evolutionary development of estuarine species, especially fishes of importance in the local cuisine, therefore related to human food security.

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Drying Characteristics and Heavy Metal Levels in Three Marine Fishes Commercialized in Brazil / Características De Secagem E Teor De Metais Pesados Em Três Espécies De Peixes Marinhos Comercializados No Brasil

Cited by 2 publications

References 25 publications

Comparative Analysis of Metals in Seafood from Rio Doce Coastal Areas and Regional Fish Markets

Comparative Analysis of Metals in Seafood from Rio Doce Coastal Areas and Regional Fish Markets

Aquatic pollutants are associated with reproductive alterations and genotoxicity in estuarine fish (Sciades herzbergii - Bloch, 1794) from the Amazon Equatorial Coast

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