Abstract
The aim of this research was to analyze the morphological features of Sabellaria alveolata reefs and the associated polychaete fauna in three different coastal areas of the Tyrrhenian Sea (Mediterranean Sea, Italy). We assessed the relationship between the physical structure of the reefs and the associated fauna. We also investigated possible connections between polychaete assemblage structure and reef development on spatial and temporal scales. Reefs were morphologically described, and the polychaete assemblages were studied using community indices, as well as multivariate and univariate statistics. Three different reef states were described, linked to their respective phase of development. The structure of the associated polychaete assemblages differed according to the relevant reef’s phase of development. Species richness was high in reefs in destruction phase, while it decreased in recovering reefs.
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