| Taxonomic Group | Name | Year | |
|---|---|---|---|
| Crustaceans-Crabs | Carcinus maenas | 1937 | |
| Algae | Codium fragile ssp. Fragile | 1980 | |
| Algae | Colpomenia peregrina* | 2013 | |
| Crustaceans-Amphipods | Corophium volutator | 2011 | |
| Tunicates | Didemnum vexillum | 2005 | |
| Crustaceans-Crabs | Hemigrapsus sanguineus | 2005 | |
| Crustaceans-Crabs | Hemigrapsus sanguineus | 2015 | |
| Mollusks-Gastropods | Littorina littorea | 1880 | |
| Arthropoda-Insects | Petrobius brevistylis* | 1969 | |
| Mollusks-Bivalves | Teredo navalis | 1960 |