| Country | United States (contiguous states) | Ecosystem | |
| Locality | Avery Point docks, Groton | Depth | |
| Introduced | Year Intro. | ||
| Life Stage | not specified | unsexed | |
| Quantitative | 8 | Unit | numbers/m^2 |
| Semi Quantitative | Unit | ||
| Qualitative | rare | ||
| Year | 2003 - | Period | 2001-present |
| Date | 2003-10-01 00:00:00 - 2003-10-31 00:00:00 | Record Type | |
| Record Type | |||
| Seasonal | Method | ||
| Remarks | Abundance observed in October of 2003, dates assumed. | ||