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Santín, A.; Grinyó, J.; Ambroso, S.; Uriz, M.-J.; Gori, A.; Dominguez-Carrió, C.; Gili, J.-M. (2018). Sponge assemblages on the deep Mediterranean continental shelf and slope (Menorca Channel, Western Mediterranean Sea). Deep Sea Research Part I: Oceanographic Research Papers. 131: 75-86.
364232
10.1016/j.dsr.2017.11.003 [view]
Santín, A.; Grinyó, J.; Ambroso, S.; Uriz, M.-J.; Gori, A.; Dominguez-Carrió, C.; Gili, J.-M.
2018
Sponge assemblages on the deep Mediterranean continental shelf and slope (Menorca Channel, Western Mediterranean Sea)
Deep Sea Research Part I: Oceanographic Research Papers
131: 75-86
Publication
Available for editors  PDF available
Sponge assemblages on continental shelves and slopes around the world have been known about for centuries. However, due to limitations of the traditional sampling systems, data about individual sponge species rather than assemblages have been reported. This study characterizes sponge assemblages over a wide bathymetric range (~50–350 m depth) and covering the entire continental shelf and the upper slope of the Menorca Channel, an area soon to be declared a Marine Protected Area (MPA) as part of the Natura 2000 Network. Quantitative analysis of 85 video-transects (a total linear distance of 75 km), together with representative collections to confirm species identifications, allowed us to discriminate six major assemblages. Differences in the assemblages mainly corresponded to differences in substrate type and depth. On the inner continental shelf, a semi-sciaphilous Axinellid assemblage dominated the rocky outcrops. Maërl beds on the inner continental shelf were dominated by Haliclona (Reniera) mediterranea, whereas the horny sponge Aplysina cavernicola and several other haliclonids mostly dominated maërl beds and rocky substrates of the outer shelf. Soft sediments on the shelf break hosted a monospecific Thenea muricata assemblage, whereas rocky substrates of the shelf break were characterized by a mixture of encrusting, columnar and fan-shaped sponges. Finally, the upper slope was dominated by Hamacantha (Vomerula) falcula and the hexactinellid Tretodictyum reiswigi. Overall, sponge diversity showed its highest values above the shelf break, plummeting severely on the upper slope. Despite this diversity decrease, we found very high densities (> 70 ind./m2) of sponges over vast areas of both the shelf break and the upper slope.
Mediterranean Sea in general
Biodiversity, Taxonomic and ecological diversity
Continental shelf
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2019-12-06 08:23:11Z
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Aaptos aaptos (Schmidt, 1864) (additional source)
Aaptos papillata (Keller, 1880) (additional source)
Acanthella acuta Schmidt, 1862 (additional source)
Agelas oroides (Schmidt, 1864) (additional source)
Amphilectus fucorum (Esper, 1794) (additional source)
Aplysilla sulfurea Schulze, 1878 (additional source)
Aplysina aerophoba (Nardo, 1833) (additional source)
Aplysina cavernicola (Vacelet, 1959) (additional source)
Ascandra contorta (Bowerbank, 1866) (additional source)
Axinella damicornis (Esper, 1794) (additional source)
Axinella polypoides Schmidt, 1862 (additional source)
Axinella pseudominuta Bibiloni, 1993 (additional source)
Axinella verrucosa (Esper, 1794) (additional source)
Axinyssa digitata (Cabioch, 1968) (additional source)
Chondrosia reniformis Nardo, 1847 (additional source)
Ciocalypta penicillus Bowerbank, 1862 (additional source)
Clathrina clathrus (Schmidt, 1864) (additional source)
Cliona viridis (Schmidt, 1862) (additional source)
Crambe crambe (Schmidt, 1862) (additional source)
Craniella cranium (Müller, 1776) (additional source)
Crella (Crella) elegans (Schmidt, 1862) (additional source)
Diplastrella bistellata (Schmidt, 1862) (additional source)
Dysidea avara (Schmidt, 1862) (additional source)
Haliclona (Halichoclona) fistulosa (Bowerbank, 1866) (additional source)
Haliclona (Halichoclona) fulva (Topsent, 1893) (additional source)
Haliclona (Halichoclona) magna (Vacelet, 1969) (additional source)
Haliclona (Reniera) mediterranea Griessinger, 1971 (additional source)
Haliclona (Soestella) implexa (Schmidt, 1868) (additional source)
Haliclona (Soestella) mucosa (Griessinger, 1971) (additional source)
Haliclona poecillastroides (Vacelet, 1969) (additional source)
Hamacantha (Vomerula) falcula (Bowerbank, 1874) (additional source)
Hemimycale columella (Bowerbank, 1874) (additional source)
Hippospongia communis (Lamarck, 1814) (additional source)
Hymedesmia (Hymedesmia) versicolor (Topsent, 1893) (additional source)
Hymedesmia (Stylopus) coriacea (Fristedt, 1885) (additional source)
Latrunculia (Biannulata) citharistae Vacelet, 1969 (additional source)
Neophrissospongia nolitangere (Schmidt, 1870) (additional source)
Pachastrella monilifera Schmidt, 1868 (additional source)
Petrosia (Petrosia) ficiformis (Poiret, 1789) (additional source)
Phakellia hirondellei Topsent, 1890 (additional source)
Phakellia robusta Bowerbank, 1866 (additional source)
Phorbas tenacior (Topsent, 1925) (additional source)
Pleraplysilla spinifera (Schulze, 1879) (additional source)
Poecillastra compressa (Bowerbank, 1866) (additional source)
Protosuberites rugosus (Topsent, 1893) (additional source)
Quasillina brevis (Bowerbank, 1861) (additional source)
Rhizaxinella pyrifera (Delle Chiaje, 1828) (additional source)
Suberites carnosus (Johnston, 1842) (additional source)
Suberites domuncula (Olivi, 1792) (additional source)
Suberites ficus (Johnston, 1842) (additional source)
Suberites syringella (Schmidt, 1868) (additional source)
Tethya aurantium (Pallas, 1766) (additional source)
Thenea muricata (Bowerbank, 1858) (additional source)
Tretodictyum reiswigi Boury-Esnault, Vacelet & Chevaldonné, 2017 (additional source)
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