Fish: Many fish species, including bass, trout, and catfish, will eat water boatmen.
Dragonflies and Damselflies: These insects are skilled predators that can catch water boatmen in mid-flight or while they are swimming.
Water Striders: These insects use their long legs to skitter across the surface of the water and can catch water boatmen that are swimming near the surface.
Larger Water Bugs: Some larger water bugs, such as giant water bugs, will eat water boatmen.
Amphibians: Frogs, toads, and salamanders will eat water boatmen if they come across them.
Birds: Birds that frequent ponds and lakes, such as ducks, herons, and kingfishers, may include water boatmen in their diet.
It's important to note that the specific predators of water boatmen will vary depending on the location and the ecosystem.