Invasion
Invasion Description
1st Record? Wells/ME/Wells Harbor (2007, MIT Sea Grant 2007)
Geographic Extent
Wells/ME/Wells Harbor (2007, MIT Sea Grant 2007)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Natural Dispersal |
Regional Impacts
| Ecological Impact | Predation | |
| Predation by Carcinus maenas has affected the behavior and morphology of Softshell Clams (Mya arenaria) in the Gulf of Maine. In the Wells estuary, clams burrow deeper in the presence of crabs. This is triggered by chemical cues, which also induce growth of longer siphons (Whitlow et al. 2003; Whitlow 2010). | ||