ShoalBase has 4 records for this species, reported from 3 countries.
| Social systems | aggregation (non spawning), schooling, shoaling, solitary |
| Group sizes | large groups (100-1000), solitary |
| Habitats | brackish, coastal marine, lake/pond, pelagic marine, river/stream |
| Life stages observed | adult, juvenile |
| Evidence sources | online resource (website or database), personal observation |
| Countries | France, Germany, UK |
| Family | Anguillidae |
| Order | Anguilliformes |
| Class | Teleostei |