| Reference no. | Winkler, H.M., K. Skora, R. Repecka, M. Ploks, A. Neelov, L. Urho, A. Gushin and H. Jespersen, 2000 |
| Ecosystem | Baltic Sea |
| Status | native |
| Abundance | scarce (very unlikely) |
| Lifestage | adults |
| Regional database | |
| Remarks | Kattegat and western Baltic Sea, including Kiel Bay (Ref. 52268, 83294, 88175, 88784). HELCOM: endangered; considered a high priority species; threatened due to target fisheries, eutrophication/pollution and habitat loss (Ref. 83294). Also Ref. 6902. |