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Orangespotted Sunfish

Orangespotted Sunfish

The Orangespotted Sunfish is a small, vibrant member of the sunfish family found in Colorado's eastern plains rivers and introduced to various waters throughout the state.

These resilient fish are ecologically unique, thriving in turbid, shallow systems with low oxygen content that other sunfish cannot tolerate.

Scientific Name: Lepomis humilis

Physical Characteristics:

They typically reach 3-6 inches in length, with some specimens growing up to 5. 9 inches.

Males display distinctive orange-red lines on cheeks and gill covers during spawning season, with vivid orange spots along their sides and olive-colored bodies with fine golden or emerald dots.

What to know

Habitat Distribution

Colorado hosts both native populations in eastern plains waters and introduced populations in the St. Vrain drainage. They prefer shallow, silt-laden waters such as floodplain pools, backwaters, small turbid streams, ponds, and vegetated areas in sluggish waters.

Key Locations

Colorado's eastern plains rivers, St. Vrain drainage (documented in 2009)

Specific Spots

Small creeks, muddy ditches, silty streams, roadside ponds, farm ponds, and vegetated backwater areas. Target vegetation edges, and shallow zones near cover. Focus on water bodies in Colorado's eastern plains and any introduced populations in warmer, turbid waters where they can establish successfully.

Orangespotted Sunfish FAQ

Answers from onWater's species guide.

What are the best lures and bait for Orangespotted Sunfish in Colorado?

Tiny jigs, small spinners, live bait (small worms, crickets), and micro crankbaits

What flies work for Orangespotted Sunfish in Colorado?

Small nymphs, Zebra Midges (sizes 14-22), Frenchie Egans (size 14), small poppers, and terrestrial patterns like foam ants and beetles

How do you catch Orangespotted Sunfish in Colorado?

Present baits slowly with subtle movements - these fish prefer gentle presentations over aggressive retrieves. Use a slow, patient approach with small split shot for casting weight when fly fishing without a fly rod.

What do Orangespotted Sunfish eat?

They're generalist predators feeding on insects (particularly corixids and chironomids), zooplankton, microcrustaceans, small invertebrates, and smaller fish.

Where do Orangespotted Sunfish live in Colorado?

Colorado hosts both native populations in eastern plains waters and introduced populations in the St. Vrain drainage. They prefer shallow, silt-laden waters such as floodplain pools, backwaters, small turbid streams, ponds, and vegetated areas in sluggish waters.

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