| Species | Recipient region | Date of the first record | |
|---|
| Pseudodiaptomus marinus | Italy / Western Mediterranean | 2008 |  |
| Pseudodiaptomus marinus | France / English Channel | 2010 | |
| Pseudodiaptomus marinus | Italy / Adriatic Sea | 2007 | |
| Pseudodiaptomus marinus | Italy / Central Mediterranean | 2008 | |
| Pseudodiaptomus marinus | Germany / North Sea | 2011 | |
| Pseudodiaptomus marinus | United Kingdom (Britain) / English Channel | To 2011 | |
| Pseudodiaptomus marinus | France / Biscay Gulf | 2010 | |
| Pseudodiaptomus marinus | Netherlands | 2011 | |
| Pseudodiaptomus marinus | Denmark / North Sea | 2018 | |
| Pseudodiaptomus marinus | France / North Sea | 2010 | |
| Pseudodiaptomus marinus | Belgium | 2015 | |
| Pseudodiaptomus marinus | Denmark / Baltic Sea | 2021 | |
| Pseudodiaptomus marinus | Portugal / Iberian Coastal | To 2020 | |
| Pseudodiaptomus marinus | Spain / Iberian Coastal | To 2020 | |
| Pseudodiaptomus marinus | France / Western Mediterranean | 2008 | |
