The "Corsica Channel Cold-Water Coral Province" (Mediterranean Sea)
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Over 25 mounds have been identified in the Corsica Channel (Mediterranean Sea) through multibeam bathymetric mapping at depth of 400–430 m, with dimensions ranging from 70 to 330 m, achieving maximum heights of 25 m. Two mounds have been explored in detail using a remotely operated vehicle, revealing thick coral growth with a predominance of the branching scleractinian Madrepora oculata as main frame builder and subordinate Desmophyllum pertusum. The solitary scleractinians Desmophyllum dianthus and Javania cailleti add to the biodiversity here, which accounts for at least 50 macro- and megabenthic species. In consideration of the remarkable surface (ca. 5.3 km2) covered by living corals, their density and healthy appearance, and discontinuity with other major cold-water coral (CWC) occurrences in the Mediterranean Sea, we propose that this area represents a distinct CWC province in a sector already known for the presence of pre-modern CWC mounds. Noticeably, well-developed contourite drift systems occur in the Corsica Channel, lending support to their strict spatial link with coral establishment at depth. The ecosystemic value of the new CWC province calls for proper conservation measures to ensure their present Good Environmental Status.
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Angeletti, L., Castellan, G., Montagna, P., Remia, A., & Taviani, M. The "Corsica Channel Cold-Water Coral Province" (Mediterranean Sea). Frontiers in Marine Science, 7, (2020): 661, doi:10.3389/fmars.2020.00661.
Suggested CitationAngeletti, L., Castellan, G., Montagna, P., Remia, A., & Taviani, M. (2020). The "Corsica Channel Cold-Water Coral Province" (Mediterranean Sea). Frontiers in Marine Science, 7, 661.
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