Contribution to the knowledge of the animal xenodiversity along Calabrian coasts (southern Italy, central Mediterranean)

Abstract

      In this paper a contribution to the knowledge of marine and brackish water alien species recorded along the Calabrian coasts (Southern Italy, Central Mediterranean) during the period 2000-2013 is given. The study area is located in the center of the Mediterranean. Records of alien species come from 13 years of both field and opportunistic fishing surveys. Also a bibliographical search in the scientific literature and public and private archives was performed. Eightenn of marine alien species recorded: 1 cnidarian, 11 molluscs, 3 crustaceans, and 4 bony fishes; in addition to these, was considered also the presence of four bony fish, that have naturally spread into the Mediterranean: Sphoeroides pachygaster, Gymnothorax moringa, Pseunes pellucidus and Zenopsis conchifera. The highest number of records comes from the Messina Strait. The most common and widest observed species were Percnon gibbesi, Callinectes sapidus, Fistularia commersonii and Procambarus clarckii. The record of Ruditapes philippinarum in the Foce Crati is the first for the Ionian Sea and for the Central Mediterranean. Gymnothorax moringa is here recorded for the first time in the Mediterranean.