| Impact ID | 5409 |
| Impact Type | Predation/Herbivory |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | Experimental pond abundances of Daphnia, mid-sized cladocerans, and total zooplankton were lowered by the introduction of Gambusia affinis |
| Reference | 39139 |
| Cost | |
| Location | |