Decapods on Adriatic gas platforms - benthic climbers and planktonic drifters? (Crustacea, Decapoda)

Belojevic, Jelena; Wess, Veronika; Jaklin, Andrej; Pfannkuchen, Martin und Melzer, Roland R. (2022): Decapods on Adriatic gas platforms - benthic climbers and planktonic drifters? (Crustacea, Decapoda). In: Spixiana, Bd. 45, Nr. 1: S. 27-33

Abstract

We studied the decapod communities at pillars of gas platforms in the Northern Adriatic sorted from samples of 20 x 20 centimetre biofouling scratched at 3, 10, and 20 metres depth at seven platforms named: Ana, Ivana A, Ivana B, Ivana C, Ivana D, and Vesna. In the samples, we found nine species: Alpheus dentipes Guerin, 1832, Alpheus macrocheles (Hailstone, 1835), Athanas nitescens (Leach, 1814), Galathea intermedia Lilljeborg, 1851, Pachygrapsus marmoratus (Fabricius, 1787), Pilumnus hirtellus (Linnaeus, 1761), Pilumnus spinifer H. Milne Edwards, 1834, Pisidia bluteli (Risso, 1816), and Pisidia longicornis (Linnaeus, 1767). Alpheus dentipes was the most abundant species in our samples with 62 individuals recorded. Most of the species might have colonised the pillars from the surrounding benthic communities. The presence of the intertidal crab Pachygrapsus marmoratus, of one megalopa of Pilumnus spinifer, and numerous juvenile crabs of Pilumnus hirtellus and P. spinifer (CW < 1 cm) indicates that colonisation via planktonic drift might also occur. We discuss possible colonisation pathways and relate them to the general and wind-driven currents in the Northern Adriatic.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Biologie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie
• ISSN: 0341-8391
• Sprache: Englisch