Sponges from Trawl-Exploitable Bottoms of Ligurian and Tyrrhenian Seas: Distribution and Ecology

Autor:	B. Musso, Maurizio Pansini
Rok vydání:	1991
Předmět:	Mediterranean climate Ecology biology Fauna Biogeography Aquatic Science biology.organism_classification Substrate (marine biology) Sponge Mediterranean sea Oceanography Common species Benthic zone Ecology Evolution Behavior and Systematics
Zdroj:	Marine Ecology. 12:317-329
ISSN:	1439-0485 0173-9565
DOI:	10.1111/j.1439-0485.1991.tb00261.x
Popis:	Sponges from muddy and dctritic bottoms along the coasts of Liguria and Tuscany (Western Mediterranean) were studied to 700 m depth. The distribution of the 66 species identified was compared with depth, geographic location, as well as type of bottom and benthic community in order to determine whether a typical sponge fauna exists in these environments. The most common species (Suberites carnosus, S.ficus, Thenea muricata) are characteristic soft bottom dwellers, but the remaining sponge fauna seems to be linked to the presence of small patches of hard substrate scattered on these bottoms. As a consequence, the neighbouring hard bottom biocoenoses may remarkably affect the composition of this fauna by an export of larvae. Many species are clearly eurybathic, but most were recorded between 50 and 200 m. Type and size of the available substrate for sponge settlement and growth are apparently the most important Ecological factors affecting the studied fauna.
Databáze:	OpenAIRE
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