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Yellow Bass

Yellow Bass

Yellow Bass are a small, aggressive member of the temperate bass family that have become widely distributed across Iowa despite being native only to the Mississippi River drainage.

They're considered an invasive species in many Iowa waters, having been introduced through unknown means (likely angler transfer) to numerous natural lakes, reservoirs, and man-made impoundments.

Scientific Name: Morone mississippiensis

Physical Characteristics:
  • These laterally compressed fish display distinctive yellow-olive to silvery-yellow coloration with 6-7 dark horizontal stripes that are broken and offset above the anal fin, distinguishing them from White Bass.
  • In Iowa, Yellow Bass rarely exceed three-fourths pound and average 6-12 inches, with the state record being 1 pound, 9 ounces from Lake Manawa.

What to know

Habitat Distribution

  • Native only to the Mississippi River drainage but have become widely distributed across Iowa in numerous natural lakes, reservoirs, and man-made impoundments.

Key Locations

  • Focus on Clear Lake (particularly the Little Lake area), East and West Okoboji, Spirit Lake, and Mississippi River pools 17 and 18.
  • Yellow Bass thrive in Clear Lake, the Iowa Great Lakes system (particularly East and West Okoboji), Mississippi River backwaters, and numerous smaller lakes throughout the state.

Specific Spots

  • Target them primarily in deeper water (10-20 feet) over mud flats and main lake basins during summer, transitioning to shallower areas (6-12 feet) in fall and winter.
  • In winter, target areas with mud bottoms where they feed on bloodworms.

Yellow Bass FAQ

Answers from onWater's species guide.

What are the best lures and bait for Yellow Bass in Iowa?

The most effective lures are small lead-head jigs (1/64 to 1/16 ounce) dressed with tube or twister-tail bodies, small jigging spoons, and inline spinners. Tungsten jigs in gold or fluorescent colors are particularly effective through the ice.

When is the best time to fish for Yellow Bass in Iowa?

Most productive from late spring through fall, with peak action occurring when water temperatures are between 60-80 degrees. Ice fishing can be phenomenal, particularly at Clear Lake's annual Yellow Bass Bonanza tournament in February.

How do you catch Yellow Bass in Iowa?

Present baits on or near the bottom, as they feed heavily on benthic invertebrates. Key technique is mobility - drill multiple holes and keep moving until you locate schools, as these fish are constantly roaming. Once you find a school, expect rapid, consecutive strikes.

What do Yellow Bass eat?

These fish are voracious feeders with juveniles consuming copepods, cladocera (particularly Daphnia), and aquatic insects like chironomids, while adults shift to a more piscivorous diet including small fish, though they continue feeding heavily on zooplankton and benthic invertebrates.

Where do Yellow Bass live in Iowa?

Native only to the Mississippi River drainage but have become widely distributed across Iowa in numerous natural lakes, reservoirs, and man-made impoundments.

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