Skip to main content

White Sucker


White Sucker

White Sucker is a native species widely distributed throughout South Dakota's waters, found in over 100 fish species documented in the state.

These bottom-feeding fish are omnivorous and prefer pool habitats with cover around logs, brush, undercut banks, and debris.

Scientific Name: Catostomus commersonii


Physical Characteristics:
  • Distinctive downward-facing inferior mouths with thick, fleshy papillose lips adapted for sucking up sediments and organisms from lake and stream bottoms.
  • They typically reach 12-20 inches in length and weigh 2-6 pounds.

What to know

Habitat Distribution

  • Inhabit diverse water types across South Dakota including warm-water habitats that exceed 75°F in summer, cool-water spring-fed streams in the Black Hills, and tailwater reaches below dams.
  • Found throughout major drainages.

Key Locations

  • Missouri River system, Black Hills streams like Spearfish Creek, Belle Fourche Reservoir, Pactola Reservoir, Rush Lake (state record location), spring-fed streams throughout the state particularly in the Black Hills region and along escarpments like the Missouri River Bluffs.

Specific Spots

  • Focus on pools with slower current (10-15 cm/sec flow), particularly areas with depths of 2-3 feet (61-90 cm preferred) that have logs, brush piles, or undercut banks for cover.
  • Look for tributary pools connected to main water bodies, as they require some water movement and avoid completely isolated pools.
  • In reservoirs, they inhabit bays and nearshore areas.

White Sucker FAQ

Answers from onWater's species guide.

What are the best lures and bait for White Sucker in South Dakota?

Natural baits including nightcrawlers, red worms, and small crayfish presented on or near the bottom.

When is the best time to fish for White Sucker in South Dakota?

Late spring through fall after spawning concludes. During spawning period (April through early May), avoid targeting them as they focus on reproduction rather than feeding.

How do you catch White Sucker in South Dakota?

Target White Suckers from late spring through fall after spawning concludes, focusing on deeper pools and areas with cover structure. Early morning and evening hours can be productive when they move into slightly shallower water to feed.

What do White Sucker eat?

Feed on benthic invertebrates, chironomid larvae, algae, mollusks, small fish, fish e.g.gs, aquatic plants, and detritus.

Where do White Sucker live in South Dakota?

Inhabit diverse water types across South Dakota including warm-water habitats that exceed 75°F in summer, cool-water spring-fed streams in the Black Hills, and tailwater reaches below dams. Found throughout major drainages.

Fish smarter with real-time insights

Whether you're en route and conditions shift or you're looking for the best spot based on current flows, we enable you to make informed decisions on the fly.

See it in the app

Most maps show you water.
onWater shows you White Sucker.

  1. 01 · Species map filter

    Map every White Sucker water

    Pick White Sucker and the map zeroes in on the waters they call home. No more guessing which lake holds them.

  2. 02 · Waterbody species

    Tap any water. See what lives there.

    Species, behavior and seasonal patterns for every lake, river and pond, before you leave the driveway.

  3. 03 · Angler Intelligence

    Ask how to catch White Sucker

    Tactics, gear and timing from onWater's AI fishing guide, tuned to the species and the water you're on.

Stop guessing where White Sucker are.

Open the map, filter by White Sucker, and head to water that holds them. Download onWater and plan your next trip in minutes.

  • Species map filter
  • Angler Intelligence
  • Fishing journal

Explore other species

Trout, bass, salmon, panfish and everything in between. Each guide unpacks the behavior, seasons, and tactics that put fish in the net.

No species information available.

South Dakota licenses and regulations

Explore nearby waters

Explore South Dakota waters

Smarter Fishing Starts in the App.

onWater Fish gives you everything you need to plan smarter, fish better, and own every trip from first cast to last.