| Reference no. | Narberhaus, I., J. Krause and U. Bernitt (eds.), 2012 |
| Ecosystem | Baltic Sea |
| Status | stray |
| Abundance | occasional (usually not seen) |
| Lifestage | juv./adults |
| Regional database | |
| Remarks | Sometimes found in the Skagerrak, Kattegat and the Danish Straits (Ref. 88784, 88832). Has not been reported from the central Baltic Sea (Ref. 88171). HELCOM: endangered; considered a high priority species (Ref. 83294). |