Hg levels in marine Porifera of Montecristo and Giglio islands (Tuscan Archipelago, Italy)
Roveta, C.; Pica, D.; Calcinai, B.; Girolametti, F.; Truzzi, C.; Illuminati, S.; Annibaldi, A.; Puce, S. (2020). Hg levels in marine Porifera of Montecristo and Giglio islands (Tuscan Archipelago, Italy). Applied Sciences-Basel 10(12): 4342. https://dx.doi.org/10.3390/app10124342
In: Applied Sciences-Basel. MDPI: Basel. e-ISSN 2076-3417, meer
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| Trefwoorden |
Porifera [WoRMS]
Marien/Kust |
| Author keywords |
toxic element; Mediterranean Sea; sponges; biomonitoring |
| Auteurs | | Top | Dataset |
- Roveta, C.
- Pica, D.
- Calcinai, B.
- Girolametti, F.
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- Truzzi, C.
- Illuminati, S.
- Annibaldi, A.
- Puce, S.
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| Abstract |
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. |
| Dataset |
- CorMedNet- Distribution and demographic data of habitat-forming invertebrate species from Mediterranean coralligenous assemblages between 1882 and 2019., meer
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