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Review
. 2023 Jan:186:114477.
doi: 10.1016/j.marpolbul.2022.114477. Epub 2022 Dec 22.

Determination of metals in estuarine fishes in a metropolitan region of the coastal zone of the Brazilian Amazon

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Review

Determination of metals in estuarine fishes in a metropolitan region of the coastal zone of the Brazilian Amazon

Marcelo Henrique Lopes Silva et al. Mar Pollut Bull. 2023 Jan.

Abstract

The aim of the present study was to determine concentrations of cadmium, copper, chromium, manganese and iron in fishes in the São Marcos (SMB), São Jose (SJB) and Arraial (AB) Bays. Metal concentrations were determined using inductively coupled plasma optical emission spectrometry. Mean Cd and Cr levels were above the permissible limits set by different international or national guidelines in all three bays, whereas copper levels were well below the maximum acceptable limit. High concentrations of iron were found in all species analyzed, whereas high concentrations of manganese were found, especially in specimens caught in SJB. Spatial analysis indicated significant differences among the elements investigated. Copper was correlated more with SMB and AB as well as the species Macrodon ancylodon (carnivore) and Sciades herzbergii (omnivore). Cadmium and iron were strongly associated with AB and SJB, while manganese was only associated with SJB, mainly in carnivorous and herbivorous species.

Keywords: Contamination; Monitoring; Muscle tissue; Toxicity.

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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