Macro and trace elements in Paracentrotus lividus gonads from South West Atlantic areas
2018
Camacho C. | Rocha A.C. | Barbosa V.L. | Anacleto P. | Carvalho M.L. | Rasmussen R.R. | Sloth J.J. | Almeida C.M. | Marques A. | Nunes M.L. | CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental
Sea urchin represents one of the most valuable seafood product being harvested and explored for their edible part, the gonads or roe. This species is generally considered a sentinel organism for ecotoxicological studies being widely used in monitoring programs to assess coastal aquatic environments quality, because is directly exposed to anthropogenic contaminants in their habitat. In this context, the aim of this study is to evaluate the concentrations of macro (Cl, K, P, Ca, S) and trace (Zn, Br, Fe, Sr, I, Se, Rb, Cu, Cr, Ni, As, iAs, Cd, Pb, Hg) elements in Paracentrotus lividus gonads from three South West Atlantic production areas subjected to distinct environmental and anthropogenic pressures. In all studied areas, the elements profile in sea urchin gonads was Cl > K > P > Ca > S > Zn > Br > Fe > Sr > I > Rb > Cu > Se > Cr > Ni, suggesting an element guide profile with special interest for sea urchin farming development. Concerning toxic elements, the profile was the following: As > Cd > Pb > Hg > iAs. The results evidenced higher levels of Pb and Hg in open areas. Distinct area characteristics and anthropogenic pressures of production areas evidence the importance of biomonitoring contaminants, particularly toxic elements. In general, the levels of these elements were below maximum levels in foodstuffs (MLs) which pose a minimal health risk to consumers. © 2018 Elsevier Inc.
Afficher plus [+] Moins [-]This work was supported by the research line INSEAFOOD within the Structured Program of R&D&I INNOVMAR – Innovation and Sustainability in the Management and Exploitation of Marine Resources (Ref. NORTE-01-145-FEDER-000035 ) that is funded by the Northern Regional Operational Programme (NORTE2020) through the European Regional Development Fund (ERDF). The Portuguese Foundation for Science and Technology (FCT) supported the contract of António Marques in the framework of IF2014 program, as well as the post-doc Grant of Patrícia Anacleto ( SFRH/BPD/100728/2014 ). Carolina Camacho acknowledges MARINALGAE4aqua Project ( ERA-NET COFASP/004/2015 ) for the research grant.
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