| Impact ID | 2829 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | The obstruction of sunlight caused by dense mats of Pistia stratiotes and Pontederia crassipes (water hyacinth) resulted in a reduction of the total amount of plankton and species diversity of plankton present in the impoundment being studied. This diminished primary production, and lead to a decreased level of water turbidity. |
| Reference | 33790 |
| Cost | |
| Location | |