The last fortress fell: mass mortality of Pinna nobilis in the Sea of Marmara
Abstract
A spring 2021 cruise to the south Marmara Islands revealed a mass mortality event of Pinna nobilis, which were reported to be healthy just seven months ago. The cause of death might be associated with the epidemic infection or a catastrophic mucilage event seen after November 2020 in the Sea of Marmara. A total of 191 Pinna nobilis individuals were found at seven stations out of 10, of which 88% were dead. In the present study, the population density (dead and alive individuals) of P. nobilis was found to be between 0.3 ind.100 m-2 and 12 ind.100 m-2 in the area. A total of three live and four dead juvenile individuals were observed in the area, indicating low recent recruitment. The highest number of dead Pinna nobilis individuals (92 specimens) was encountered in shallow-waters (0-4 m depth). A total of 34 species belonging to six taxonomic groups (Sipuncula, Oligochaeta, Polychaeta, Crustacea, Mollusca, and Pisces) were found within the dead shells of four P. nobilis individuals. The mass mortality of Pinna nobilis in the Sea of Marmara, the last remaining disease-free sea, indicates the necessity of establishing and implementing emergency action plans for this species, including ex-situ conservation.
Article Details
- Zitationsvorschlag
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CINAR, M. E., BILECENOGLU, M., YOKEŞ, M. B., & GÜÇLÜSOY, H. (2021). The last fortress fell: mass mortality of Pinna nobilis in the Sea of Marmara. Mediterranean Marine Science, 22(3), 669–676. https://doi.org/10.12681/mms.27137
- Ausgabe
- Bd. 22 Nr. 3 (2021)
- Rubrik
- Research Article
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