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Mooneye

Mooneye

Hiodon tergisus

ActinopterygiiListed as Least Concern…

Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Actinopterygii
Order
Perciformes
Family
Hiodontidae
Genus
Hiodon
Species
tergisus

Habitat

Mooneye primarily inhabit large rivers, lakes, and reservoirs in North America, favoring clear, open waters with moderate currents and sandy or gravelly bottoms. They are commonly found in the Great Lakes region and major river basins like the Mississippi. This species avoids heavily vegetated or turbid areas.

Diet

Mooneye feed on insects, small fish, and crustaceans, often targeting prey near the surface or in midwater. They are visual predators that actively hunt during low-light periods like dawn and dusk. Their feeding behavior includes schooling to corral prey.

Behavior

Mooneye are schooling fish that form loose groups for protection and feeding, making them more active at night or in low-light conditions. They exhibit migratory patterns, moving to shallower waters in spring for spawning and deeper areas in winter. Territorial behavior is minimal, but they can be skittish and quick to flee from threats.

Conservation Status

Listed as Least Concern by IUCN.