Publication: Concentration and distribution of macrominerals in tissues of Mediterranean mussel Mytilus galloprovincialis exposed to Cd and Cd-mixtures
Authors
García-Navarro, José A. ; Vera-Sánchez, Miguel A. ; Romero, Diego
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Publisher
Universidad de Valparaiso (Chile), Facultad de Ciencias del Mar y Recursos Naturales
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Description
©2021. This manuscript version is made available under the CC-BY-NC 4.0 license http://creativecommons.org/licenses/by-nc/4.0/
This document is the Published version of a Published Work that appeared in final form in Revista de Biología Marina y Oceanografía. To access the final edited and published work see DOI: https://doi.org/10.22370/rbmo.2021.56.2.3060
Abstract
Marine ecosystems are under great pressure due to heavy metals pollution, and mussels remain an important knowledge
source in this regard. In this study, Mediterranean mussels (Mytilus galloprovincialis) were exposed for 7 days to Cd and three Cd mixtures (Cd+Pb, Cd+Cu and Cd+Pb+Cu). The accumulation and tissue distribution of inorganic elements (Ca, K, Mg, Na, P and S,
macrominerals) that are usually not taken into consideration in field studies on in bioassays were evaluated. Regarding concentration,
the element which differed the most with respect to the control group was K, while Mg was the only one which showed no
significant statistical difference with the control group. The group exposed to ternary mixture was the one in which there were more
alterations in concentration and distribution of these macrominerals with respect to control, whereas in the group exposed to single
Cd no significant differences in the concentration of these inorganic elements were found. The concentration and distribution of
macrominerals in the compartments studied (digestive gland, gill and remaining soft tissues) is susceptible to the presence of Cd
and heavy metal Cd-mixtures, with percentages of changes until 28.7%. Study results suggest that macrominerals composition in
mussel tissues could be useful in studies of heavy metal contamination in marine ecosystems.
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