Stickleback fish feed on mayfly nymphs and pond snails.
| Organisms | Number | Mean biomass of each organism in grams | Biomass of population in grams |
|---|---|---|---|
| Water plants | 150 | 45.0 | 6750 |
| Mayfly nymphs | 800 | 0.8 | 640 |
| Pond snails | 120 | 2.5 | 300 |
| Sticklebacks | 25 | 14.0 | 350 |
| Frogs | 8 | 42.0 | 336 |
A chemical molluscicide is added to the pond to kill the pond snails.
Explain how killing the pond snails would affect the population of mayfly nymphs in this pond.
