Invasion
Invasion Description
RI/Narragansett Bay (1968, Carlton and Scanlon 1984)
Geographic Extent
Warwick Cove Marina, Warwick/RI/Narragansett Bay (2000, MIT Sea Grant 2003); Allens Harbor, North Kingstown/RI/Narragansett Bay (2000, MIT Sea Grant 2003); Warwick Cove Marina, Warwick/RI/Narragansett Bay (2000, MIT Sea Grant 2003); Fort Getty Pier, Jamestown/RI/West Passage (2000, MIT Sea Grant 2003); Warwick Cove Marina, Warwick/RI/Narragansett Bay (2000, MIT Sea Grant 2003); Newport Shipyard, Newport/RI/East Passage, Narragansett Bay (2000, MIT Sea Grant 2003); Brenton Point Sate Park, Newport/RI/Narragansett Bay (2005, Jones and Thorber 2010);Fort Adams St. Park, Newport/RI/Narragansett Bay (7/26/2010, MacIntyre et al. 2011; Massachusetts Office of Coastal Zone Management 2013); Warwick Cove Marina, Warwick/RI/Narragansett Bay (2000, MIT Sea Grant 2003); Warwick Cove Marina, Warwick/RI/Narragansett Bay (2000, MIT Sea Grant 2003)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Natural Dispersal |
| Alternate | Oyster Accidental |
| Alternate | Fisheries Accidental (not Oyster) |
| Alternate | Ballast Water |
Regional Impacts
| Ecological Impact | Habitat Change | |
| Codium fragile supports a diverse community of native and introduced epiphytic algae, year-round. The latter include Antithamnion hubbsii, Bonnemaisonia hamifera, and Neosiphonia harveyi. Epiphyte communities on C. fragile were denser and more abundant than those on the native Fucus vesiculosus (Jones and Thorber 2010). The epiphytes N. harveyi (introduced) and C. virgatum (native) also provided an important food source for the native snail Lacuna vincta (Northern Lacuna) (Jones and Thornber 2005). | ||