Invasion
Invasion Description
None
Geographic Extent
ME-NH/Great Bay (1980, Gaulin et al. 1986; Chester 1996)
Vectors
| Level | Vector |
|---|---|
| Alternate | Ballast Water |
| Alternate | Hull Fouling |
Regional Impacts
| Ecological Impact | Predation | |
| Predation by Tenellia adspersa on the hydroid Cordylophora caspia stimulated increased growth and budding in the hydroid, resulting in a denser colony, perhaps favoring the persistence of the colonies (Gaulin et al. 1986). However, population modeling, including reproduction and settlement, indicates that T. adspersa is likely to remove colonies of C. caspia, favoring succession in the fouling community (Chester et al. 2000). | ||