| Impact ID | 1888 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Preliminary observations have shown that T granifera is outcompeting native Thiarid snails in Africa, Melanoides tuberculata and Thiara amarula. |
| Reference | 32496 |
| Great Lakes Region | No |
| Cost | |
| Location | |
