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| Molluscan assemblages in littoral soft bottoms of the Alboran Sea (Western Mediterranean Sea) Urra, J.; Gofas, S.; Rueda, J.L.; Marina, P. (2011). Molluscan assemblages in littoral soft bottoms of the Alboran Sea (Western Mediterranean Sea). Mar. Biol. Res. 7(1): 27-42. https://dx.doi.org/10.1080/17451001003660301
In: Marine Biology Research. Taylor & Francis: Oslo; Basingstoke. ISSN 1745-1000; e-ISSN 1745-1019
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Fauna > Aquatic organisms > Aquatic animals > Shellfish > Marine organisms > Marine molluscs MED, Alboran Sea MED, Western Mediterranean Spain Species diversity Bivalvia [WoRMS]; Gastropoda [WoRMS] Alboran Sea [Marine Regions]; Mediterranean Sea - Western Basin [Marine Regions]; Spain [Marine Regions] Marien/Kust |
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 s' (SFBC, well sorted fine sands); 'dtritique c tier' (DC, coastal bioclastic sands); 'dtritique envas' (DE, muddy bioclastic sands); and 'corallig ne' (CO, coralligenous) biocoenoses of Prs and Picard classification. A total of 234 molluscan species were identified, with gastropods as the dominant group (135 species). An increase of diversity and evenness with depth has been observed, with the highest values for both indexes on a rocky outcrop, and the lowest in the shallower fine sand assemblage dominated by few species. The different molluscan assemblages inhabiting these sublittoral bottoms were conditioned by depth, percentage of gravel and percentage of clay. A large proportion of tropical West African species is found in the area, some of them reaching their distributional limit towards the Mediterranean Sea. The southern Iberian coasts, in the confluence of Atlantic and Mediterranean waters and between Africa and Europe, are therefore highlighted as one of the areas with highest molluscan species richness in Europe, and require a conservation policy in order to preserve this unique European biodiversity heritage. |
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