| Reference no. | Morrow, J.E., 1980 |
| Ecosystem | Great Lakes |
| Status | native |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | The three observed phenotypes existing in Lake Superior (lean, siscowet and humper or paperbelly) are under some genetic control and not merely expressions of environmental adaptation (Ref. 40529). |