Alligator gar are found in large lakes, rivers, and bayous. Typically they are found in backwaters and bottomland swamps. They are found in both freshwater and brackish waters, they rarely enter marine waters (Etnier, 1993; Knopf, 2002).
Range depth: 0-1 (low) m.
Habitat Regions: temperate ; freshwater
Aquatic Biomes: lakes and ponds; rivers and streams; brackish water
Other Habitat Features: estuarine