Invasion
Invasion Description
1st record: Ravenna/Italy/Ravenna Lagoon (1986, Zenetos et al. 2003)
Geographic Extent
Ravenna/Italy/Ravenna Lagoon (1986, Zenetos et al. 2003); Italy/Sacco di Goro Lagoon, Po River Delta (1994, Mistri et al. 2002; Sgro et al. 2002; Munari 2008); Italy/Marinetta Lagoon, Po River Delta, Adriatic Sea (2006, Munari et al. 2015); Venice/Italy/Lagoon of Venice (2002, Museo di Storia Naturale di Venezia 2013); Gargano National Park/Italy/Varona Lagoon, Adriatic Sea (2004, Florio et al. 2008); Gargano National Park/Italy/Lesina Lagoon, Adriatic Sea (2005, Florio et al. 2008); Italy/Grado and Marano Lagoon (Crocetta 2011); along the Slovenian shore/Slovenia/Gulf of Trieste (Crocetta 2011; Lipej et al. 2012); Croatia/Neretva River (2010, Despalatovic et al. 2013); Bar/Montenegro/Adriatic Sea (2014, Petovic et al. 2019)
Vectors
| Level | Vector |
|---|---|
| Probable | Fisheries Accidental (not Oyster) |
| Alternate | Oyster Accidental |
Regional Impacts
| Ecological Impact | Competition | |
| In the Sacco di Goro, in the Po River delta, the invasion of A. senhousia was accompanied by the decline of the exotic suspension-feeders Ficopomatus enigmaticus, Hydroides dianthus, and the native Mytilaster minimus, presumably due to competition for suspended food particles (Mistri 2003). | ||
| Ecological Impact | Habitat Change | |
| In the Sacco di Goro, in the Po River delta, the invasion of M\A. senhousia was accompanied by the increase of deposit-feeding taxa (Neanthes succinea, Streblospio shrubsolei, and Microdeutopus gryllotalpa), probably favored by changes in the sediment (Mistri 2003). Patches of mussels of moderate density, had higher abundances, biomasses and species richness than areas without mussels, but at extremely high mussel densities, benthic diversity decreased (Munari et al. 2008). | ||