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Taxa composition of all non-indigenous species (NIS), widespread NIS and post-1990 widespread NIS in European Seas.
| Taxa | All NIS | Widespread NIS | Post-1990 widespread NIS |
|---|---|---|---|
| Molluscs | 26.8% | 21.2% | 16.0% |
| Crustaceans | 19.7% | 21.2% | 36.0% |
| Fish | 16.8% | 15.4% | 20.0% |
| Macroalgae | 14.1% | 23.1% | 8.0% |
| Annelid worms | 9.3% | 7.7% | – |
| Other taxa | 13.2% | 11.5% | 20.0% |
