The consumption of shark meat in the Amazon region and its implications for human health and the marine ecosystem

Here, we evaluated the levels of As, Hg, Pb, and Cd in shark meat sold along Amazon Coast Brazil used nitrogen stable isotope values to determine trophic position assess element biomagnification. From market samples, a total 13 species were identified via molecular analysis, including those listed as endangered vulnerable by IUCN Red List. Arsenic was present significantly higher concentrations than all other elements, followed with highest mean recorded M. higmani (As: 19.46 ± 8.79 ?g/g ww) C. acronotus (Hg: 1.12 0.68 ww). Lead at much lower species. The EWI individual elements above PTWI for when considering seven inorganic arsenic (iAs), one Pb. weekly consumption 10 should be reduced less 416.39 g, which is equivalent daily estimated fish rate region. (±SD) ?15N ranged from 10.7 0.51‰ 14.2 0.59‰ porosus, indicating feeding over >1 level. negatively correlated values, while Hg positively biodilution biomagnification, respectively. Our results indicate that sale will expose consumers potentially harmful iAs well contributing population decline are currently categorized threatened.