| Impact ID | 9995 |
| Impact Type | Food Web |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In Brazil, Hoplias malabaricus, a native predator, populations remain absent or in decline in areas with high abundance of small, adult Oreochromis niloticus. |
| Reference | 45493 |
| Great Lakes Region | No |
| Cost | |
| Location | Brazil |