| Impact ID | 2490 |
| Impact Type | Food Web |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | In canals where Spotted Tilapia were found with other exotic fishes, fewer native fishes were found, and in some instances an apparent decrease in the population sizes of previously established exotic fishes. For example, in certain canals where pike killifish and Oscars were formally plentiful, their populations appear now to be reduced in numbers. |
| Reference | 172 |
| Great Lakes Region | No |
| Cost | |
| Location | |
