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ERMS source details

Harmelin, J.-G.; Boury-Esnault, N.; Fichez, R.; Vacelet, J.; Zibrowius, H. (2003). Peuplement de la grotte sous-marine de l'ile de Bagaud (Parc national de Port-Cros, France, Méditerranée). Rapport scientifique du Parc national de Port-Cros. 19: 117-134.
Harmelin, J.-G.; Boury-Esnault, N.; Fichez, R.; Vacelet, J.; Zibrowius, H.
Peuplement de la grotte sous-marine de l'ile de Bagaud (Parc national de Port-Cros, France, Méditerranée)
Rapport scientifique du Parc national de Port-Cros
19: 117-134
Available for editors  PDF available
Communities of a submarine cave at Bagaud Island, (Port-Cros National Park, France, Mediterranean). The communities in the only submarine cave known in the national park of Port·Cros have been surveyed by SCUBA diving. This shallow cave (8 m) comprises two small chambers offering various degrees of darkness, low confinement, and an unusual production of manganese oxides from cracks in the back wall. Sessile communities were dominated both in cover and species richness by sponges (47 species). Secondary dominants in cover included bryozoans (29 species), scleractinians (5 species) and serpulid and spirorbid polychaetes (18 species). Brachiopods (5 species) and molluscs (6 species) were subordinate components of the wall and roof fauna. Ten species of crustaceans (2 mysids and 8 decapods) and 19 fish species, including 11 resident species, were recorded visually. Despite limiting physical characters (small cave size, Shallow depth, exposure), all these groups included typical components of dark cave communities that also occur on the continental slope, as well as rare or poorly known species. These assemblages were also characterised by the absence of some species among the most common components of other NW Mediterranean cave communities and which occur locally in deeper shaded habitats. The production of manganese oxides in the back chamber may possibly be responsible of part 01 these exclusions (e.g. cyclostome bryozoans), and of abnormality affecting spicules in some siliceous sponge species.
Mediterranean Sea in general
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2014-11-02 17:24:53Z
2014-11-03 08:46:04Z
2014-11-07 15:10:43Z
2020-05-05 16:33:56Z

Aaptos aaptos (Schmidt, 1864) (additional source)
Agelas oroides (Schmidt, 1864) (additional source)
Axinella damicornis (Esper, 1794) (additional source)
Batzella inops (Topsent, 1891) (additional source)
Cacospongia mollior Schmidt, 1862 (additional source)
Chondrosia reniformis Nardo, 1847 (additional source)
Clathrina clathrus (Schmidt, 1864) (additional source)
Dendroxea lenis (Topsent, 1892) (additional source)
Dictyonella incisa (Schmidt, 1880) (additional source)
Diplastrella bistellata (Schmidt, 1862) (additional source)
Erylus euastrum (Schmidt, 1868) accepted as Penares euastrum (Schmidt, 1868) (additional source)
Hemicyclopora collarina Canu & Lecointre, 1930 (additional source)
Hymedesmia pansa Bowerbank, 1882 represented as Hymedesmia (Hymedesmia) pansa Bowerbank, 1882 (additional source)
Ircinia dendroides (Schmidt, 1862) (additional source)
Jaspis johnstonii (Schmidt, 1862) (additional source)
Merlia deficiens Vacelet, 1980 (additional source)
Microciona toxitenuis (Topsent, 1925) accepted as Clathria (Microciona) toxitenuis Topsent, 1925 (additional source)
Oscarella tuberculata (Schmidt, 1868) (additional source)
Oscarella viridis Muricy, Boury-Esnault, Bézac & Vacelet, 1996 (additional source)
Penares helleri (Schmidt, 1864) (additional source)
Petrobiona massiliana Vacelet & Lévi, 1958 (additional source)
Petrosia ficiformis (Poiret, 1789) represented as Petrosia (Petrosia) ficiformis (Poiret, 1789) (additional source)
Phorbas fictitius (Bowerbank, 1866) (additional source)
Phorbas tenacior (Topsent, 1925) (additional source)
Plakina trilopha Schulze, 1880 (additional source)
Reniera fulva Topsent, 1893 accepted as Haliclona (Halichoclona) fulva (Topsent, 1893) (additional source)
Reniera mucosa Griessinger, 1971 accepted as Haliclona (Soestella) mucosa (Griessinger, 1971) (additional source)
Rhabderemia gallica van Soest & Hooper, 1993 (additional source)
Rhabderemia spinosa Topsent, 1896 (additional source)
Rhabderemia topsenti van Soest & Hooper, 1993 (additional source)
Rhabderemia toxigera Topsent, 1892 (additional source)
Rhaphidophlus jolicoeuri Topsent, 1892 accepted as Clathria (Thalysias) jolicoeuri (Topsent, 1892) (additional source)
Spirastrella cunctatrix Schmidt, 1868 (additional source)
Spirastrella minax (Topsent, 1888) accepted as Trachycladus minax (Topsent, 1888) (additional source)
Spongia officinalis Linnaeus, 1759 represented as Spongia (Spongia) officinalis Linnaeus, 1759 (additional source)
Stylopus dujardini (Bowerbank, 1866) accepted as Hymedesmia (Stylopus) coriacea (Fristedt, 1885) (additional source)
Terpios fugax Duchassaing & Michelotti, 1864 (additional source)
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