ShoalBase has 4 records for this species, reported from 3 countries.
| Social systems | aggregation (non spawning), aggregation (spawning), solitary |
| Group sizes | small groups (3-10), solitary |
| Habitats | brackish, lake/pond, river/stream |
| Life stages observed | adult, juvenile |
| Evidence sources | personal observation |
| Countries | Finland, Sweden, UK |
| Family | Esocidae |
| Order | Esociformes |
| Class | Teleostei |