| Country | Locality | Introduced | Year | Qualitative Value | Ref. |
|---|---|---|---|---|---|
| United States (contiguous states) | Salt marsh pools, New Jersey, USA | 1990 - 1990 | absent | 58356 | |
| United States (contiguous states) | Salt marsh pools, New Jersey, USA | 1991 - 1991 | rare | 58356 | |
| United States (contiguous states) | Salt marsh pools, New Jersey, USA | 1993 - 1993 | extremely abundant | 58356 | |
| United States (contiguous states) | Salt marsh pools, New Jersey, USA | 1995 - 1995 | rare | 58356 | |
| United States (contiguous states) | Salt marsh pools, New Jersey, USA | 1996 - 1996 | common | 58356 |