# | Species | Year | Period | From - To | Reason | Established in the wild | Ref. no. |
1 | Faxonius limosus | 1890 | 18th century | Northeast America. - Inland waters. | fill ecological niche | Unknown | 003700 |
2 | Gammarus tigrinus | 1957 | 1950-1974 | Northwest Atlantic. - Inland waters | fill ecological niche | Unknown | 003700 |