Metal contamination in threatened elasmobranchs from an impacted urban coast

摘要: Guitarfishes and angelsharks are two of the most endangered elasmobranch groups. Despite this, limited knowledge exists regarding effects environmental contamination in these For this reason, study assessed concentrations metals liver muscle three guitarfishes (Pseudobatos horkelii, P. percellens, Zapteryx brevirostris) one angelshark species (Squatina guggenheim) captured during year 2019 impacted areas South America: Sao Paulo State coast, Brazil, Southwest Atlantic. Cadmium (Cd) Chromium (Cr) Cupper (Cu) Iron (Fe), Mercury (Hg), Lead (Pb) were determined by atomic spectrometry, with samples being previously acid digested. Among non-essential metals, Cd had highest mean for all species, followed Pb Hg, whereas Fe levels among essential analyzed, Cu Cr. Liver different concentrations, presenting concentrations. Except Cd, relatively low when compared to other reported literature, which could be explained efficiency metabolizing compounds or differential life history patterns studied herein other. Considering that analyzed typically consumed, human health impacts must considered, especially concerning Furthermore, Cr above safety limits, indicating potential hazard consumption. In conclusion, our results suggest exposed limits observed taken into consideration