| Impact ID | 8458 |
| Impact Type | Predation/Herbivory |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | Rusty crayfish consumed significant quantities of lake sturgeon eggs. Egg conssumption increased as substrate size decreased (higher over sand than cobble), with crayfish body size, and with crayfish density. |
| Reference | 42174 |
| Cost | |
| Location | Black Lake, Michigan |