| Country | United States (contiguous states) | Ecosystem | |
| Locality | Salt marsh pools, New Jersey, USA | Depth | |
| Introduced | Year Intro. | ||
| Life Stage | not specified | unsexed | |
| Quantitative | 1901 | Unit | numbers |
| Semi Quantitative | Unit | ||
| Qualitative | very common | ||
| Year | 1995 - 1995 | Period | 1975-2000 |
| Date | 01/06/95 - 31/07/95 | Record Type | field sample |
| Record Type | field sample | ||
| Seasonal | Method | random sampling | |
| Remarks | Sampling site: Sheepshead Meadows, Jacques Costeau National Estuarine Research Reserve. Sampling gear used were experimental traps set flat on the bottom for 3 hours approximately 1m from the pool's edge. | ||