Marine fauna of Mljet National Park (Adriatic Sea, Croatia). 2. Echinodermata

Abstract

         Echinoderms of Mljet National Park from all kinds of environments were reviewed. Research was carried out during the summers from 1995 to 2002 at 63 sites by SCUBA and skin divers to a maximum depth of 58 m. At 21 stations, deeper specimens were collected by a Van VEEN grab. At 6 sites, echinoderms were obtained from commercial trammel bottom sets or lobster pots. Earlier published records were reviewed and old collections were examined. In total, 53 species and one ecophenotype were recorded. General distribution, depth range, habitat and ecological notes are listed for each species. The morphology, behaviour and distributional patterns are discussed for a number of species. Specimens of Holothuria sp. cf. mammata, Arbaciella elegans, and Brissopsis aff. mediterranea are described in detail and illustrated. Echinofauna of Mljet National Park is less diverse than in some other Adriatic Sea areas.