Invasion
Invasion Description
1st Records: Goddard State Park, Warwick/RI/Greenwich Cove (2007, Nettleton et al. 2013, 41 40 03N, 71 25 52 W); Budlong Farm, Warwick/RI/Greenwich Bay, Narragansett Bay (10/2007, Saunders 2009); Bass Rock, Narragansett/RI/Narragansett Bay (2007, Nettleton et al. 2013, 41 24 18N, 71 27 27W)
Geographic Extent
Port Edgewood Marina, Cranston/RI/Providence River (2013, Wells et al. 2013; Mathieson 2016, 41 46 57 N, 71 23 27W ); Oakland Beach, Warwick/RI/Greenwich Bay (Guidone et al. 2014, 41°41.216?N, 71°24.143?W); Warwich City Park, Warwick/RI/Greenwich Bay (Guidone et al. 2014, 41°41.263?N, 71°24.381?W),; Budlong Farm, Warwick/RI/Greenwich Bay, Narragansett Bay (10/2007, Saunders 2009); Goddard State Park, Warwick/RI/Greenwich Cove (2007, Nettleton et al. 2013, 41 40 03N, 71 25 52 W) ; Allens Cove Marina/North Kingstown/RI/Narragansett Bay (2013, Wells et al. 2014; Mathieson 2016, 41 3709N, 71 24 47W); Kings Beach, Newport/RI/Rhode Island Sound (2010; MacIntyre et al. 2010; Massachusetts Office of Coastal Zone Management 2013)); Bass Rock, Narragansett/RI/Narragansett Bay (2007, Nettleton et al. 2013, 41 24 18N, 71 27 27W); Port Edgewood Marina, Cranston, RI, 4184605700N, 7182302700W [2013]
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Ballast Water |
Regional Impacts
| Ecological Impact | Habitat Change | |
| The Eastern Mud Snail Ilynassa obsoleta prefers Agarophyton vermiculophyllum to the native red alga Ceramium virgatum as a surface for egg deposition, potentially increasing the abundance of this omnivorous snail (Guidone et al. 2014). | ||
| Ecological Impact | Competition | |
| Egg deposition by the Eastern Mud Snail Ilynassa obsoleta inhibits the growth of the native red alga Ceramium virgatum but does not affect the growth of Agarophyton vermiculophyllum, even though this alga attracts more snail egg capsules. This gives G. vermiculophylla a competitive advantage in areas of high I. obsoleta, typical of mudflat habitats (Guidone et al. 2014). | ||