Get to know emerald bowfin: identifying features, habitat, food, and life cycle.
Identification & habitat
- Current Missouri name: Emerald bowfin, Amia ocellicauda.
- Taxonomy update: Older references used Amia calva for all bowfin; two species are now recognized.
- Dorsal fin: Very long, extending over half the back.
- Tail: Rounded; young and males often show a dark eyespot near its base.
- Color: Mottled olive-green; breeding males can develop bright green fins.
- Air breathing: Swim bladder can function like a lung.
- Habitat: Swamps, backwaters, oxbows, and sluggish vegetated water.
Food & behavior
- Daily rhythm: Often shelters deep by day and feeds shallower at night.
- Food: Fish, crayfish, insects, worms, and frogs.
Spawning, growth & lifespan
- Nest: Males build shallow nests among plants.
- Care: Males guard eggs and accompany swarms of young.
Angling & the bigger picture
- Native fish: Do not confuse it with invasive snakehead.
- Comparison: Snakehead has a much longer anal fin.
- Ecology: An important native predator in wetland food webs.
Sources & further reading
Research checked October 18, 2026. Common sizes and ages are examples rather than hard limits. Missouri spawning dates are regional unless another location is named. Consult the current local fishing rules for the water you plan to fish.