Invasion
Invasion Description
1st record: Ravenna/Italy/Adriatic Sea (1974, Stepassi 1977; Zenetos et al. 2003)
Geographic Extent
Ravenna/Italy/Adriatic Sea (1974, Zenetos et al. 2003); Venice/Italy/Lagoon of Venice (1976, Cesari and Pellizzato 1985); Italy/Gulf of Trieste (1983, Cukaz 1983, cited by Koutsoubas and Voultsiadou-Koukoura 1991); Slovenia/Gulf of Trieste (1996, Crocetta 2011; Lipej et al. 2012); Gargano National Park/Italy/Varona Lagoon, Adriatic Sea (Florio et al. 2008, 6 specimens); Goro/Italy/Adriatic Sea (Savini et al. 2007); Cesenatico//Italy/Adriatic Sea (Savini et al. 2007); Fano/Italy/Adriatic Sea (Savini et al. 2007); Italy/South Adriatic Sea (Crocetta 2012)
Vectors
| Level | Vector |
|---|---|
| Alternate | Ballast Water |
| Alternate | Oyster Accidental |
Regional Impacts
| Ecological Impact | Predation | |
| In field experiments in the northern Adriatic, Rapana venosa fed heavily on the introduced Indo-Pacific ark shell Anadara inaequivalvis, while feeding less on the introduced Japanese Littleneck Clam (Venerupis philippinarum) and the Mediterranean Mussel (Mytilus galloprovincialis). The observed rate of predation would be sufficient to reduce the population of A. inaequivalvis and affect community composition (Savini and Occhipinti-Ambrogi 2006). Indirect effects on the commercially important V. philippinarum and the Mediterranean Mussel (M. galloprovincialis) are possible, but were not studied in this experiment. | ||