Dear MARMAM community, On behalf of my coauthors, I am pleased to announce our recent article published in Environmental Pollution:
Linking cadmium and mercury accumulation to nutritional intake in common dolphins (*Delphinus delphis*) from Patagonia, Argentina Machovsky-Capuska GE, von Haeften G, Romero MA, Rodriguez DH, Gerpe MS. Bioaccumulation of Hg and Cd from food is a complex ecological process that has been oversimplified in the past. Common dolphins (*Delphinus delphis*) provide a powerful model to biomonitor metal concentrations in marine environments worldwide. We combined proportions-based nutritional geometry with metal analysis, stomach content analysis and the proximate composition of prey, to yield novel insights into the accumulation of Hg and Cd. Our analysis showed an age-related accumulation trend for Cd and Hg in kidney and liver, with highest concentrations found at 18 years of age. When viewed through the lens of nutritional ecology, Argentine anchovy (58.1 Mass %) and South American longfinned squid (22.7 Mass %), provided most of the dietary intake of protein (P) and lipids (L) (P:L ratio= 2.6:1.0) and also represented the main source for Cd and Hg levels accumulated in their bodies.This study presents unprecedented evidence on metal accumulation in relation to age and nutritional intake in a marine predator. The full article is available online: https://doi.org/10.1016/j.envpol.2020.114480 Please don't hesitate to contact me ([email protected]) if you have any queries regarding to this article or to request a PDF copy. Best, Gabriel -- https://gabrielmachovsky.wordpress.com/
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