Linking trophic ecology with element concentrations in a coastal fish community of the Bijagós Archipelago, West Africa

Research reveals significant biomagnification of mercury (Hg) and selenium (Se) in coastal fish species of the Bijagós Archipelago, Guinea-Bissau, with concentrations increasing alongside trophic position. The study analyzed 13 elements in muscle and liver tissues of 17 fish species, finding higher levels of Hg, Fe, Mn, Cu, Zn, Se, and As in livers, while Sr and Ca were more abundant in muscles. Stable isotope analysis (δ13C and δ15N) linked these element patterns to trophic ecology, highlighting potential risks for human health given fish's importance as a protein source in the region.

Correia, E., Granadeiro, J. P., Vale, C., & Catry, T. (2022). Linking trophic ecology with element concentrations in a coastal fish community of the Bijagós Archipelago, West Africa. Marine Pollution Bulletin, 178, 113555. https://doi.org/10.1016/j.marpolbul.2022.113555