limnologist
/lɪmˈnɑlədʒɪst/
noun
- A scientist who studies lakes, ponds, and other freshwater bodies.
- The local limnologist warned the community about the algae bloom in the reservoir.
- As a limnologist, she spends most of her time researching freshwater ecosystems.
- The limnologist collected water samples from the lake to test for pollution.