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Hg Levels in Marine Porifera of Montecristo and Giglio Islands (Tuscan Archipelago, Italy)

Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(12), 4342;
Received: 29 May 2020 / Revised: 22 June 2020 / Accepted: 23 June 2020 / Published: 24 June 2020
(This article belongs to the Special Issue Transport, Persistence and Toxicity of Pollutants in the Sea)
Porifera are filter-feeding organisms known to bioaccumulate different contaminants in their tissues. The presence of mercury (Hg) has been reported in different Mediterranean species, mainly collected in the southern coast of France. In the present study, mercury concentrations in the tissue of the sponges of Montecristo and Giglio, two islands of Tuscany Archipelago National Park (TANP), are presented for the first time. Analyses of total mercury content were performed by Direct Mercury Analyzer. Statistical differences have been reported in the Hg concentrations of species collected in both islands, but they do not appear related to the anthropic impacts of the islands. Among the collected species, a high intra- and inter-variability have been recorded, with Cliona viridis showing the lowest concentration (0.0167–0.033 mg·kg−1 dry weight), and Chondrosia reniformis and Sarcotragus spinosulus the highest (0.57 ± 0.15 and 0.64 ± 0.01 mg·kg−1 dry weight, respectively). The variability of Hg measured did not allow us to identify sponges as bioindicators of toxic elements. Anyway, these results improve knowledge on the ecosystem of the TANP, underlining the species-specificity of metal concentrations for Porifera, and providing additional data to address the main input of the Marine Strategy guidelines to protect coasts, seas and oceans. View Full-Text
Keywords: toxic element; Mediterranean Sea; sponges; biomonitoring toxic element; Mediterranean Sea; sponges; biomonitoring
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MDPI and ACS Style

Roveta, C.; Pica, D.; Calcinai, B.; Girolametti, F.; Truzzi, C.; Illuminati, S.; Annibaldi, A.; Puce, S. Hg Levels in Marine Porifera of Montecristo and Giglio Islands (Tuscan Archipelago, Italy). Appl. Sci. 2020, 10, 4342.

AMA Style

Roveta C, Pica D, Calcinai B, Girolametti F, Truzzi C, Illuminati S, Annibaldi A, Puce S. Hg Levels in Marine Porifera of Montecristo and Giglio Islands (Tuscan Archipelago, Italy). Applied Sciences. 2020; 10(12):4342.

Chicago/Turabian Style

Roveta, Camilla, Daniela Pica, Barbara Calcinai, Federico Girolametti, Cristina Truzzi, Silvia Illuminati, Anna Annibaldi, and Stefania Puce. 2020. "Hg Levels in Marine Porifera of Montecristo and Giglio Islands (Tuscan Archipelago, Italy)" Applied Sciences 10, no. 12: 4342.

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