| FishBase |
| # | Species | No. of records | Established in the wild | No. of reported environmental impacts | No. of adverse environmental impacts reported | Link |
| 1 | Mytilus galloprovincialis | 1 | 0 | 0 | 0 | References |
| 2 | Sphaeroma serratum | 1 | 0 | 0 | 0 | References |
| 3 | Schizoporella errata | 1 | 0 | 0 | 0 | References |
| 4 | Bugula neritina | 1 | 1 | 1 | 0 | References |
| 5 | Proasellus coxalis | 1 | 0 | 0 | 0 | References |
| 6 | Sabella spallanzanii | 1 | 0 | 0 | 0 | References |
| 7 | Ligia italica | 1 | 0 | 0 | 0 | References |
| 8 | Ophryotrocha labronica | 1 | 0 | 0 | 0 | References |