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Blue Sucker

Blue Sucker

Blue Sucker (Cycleptus elongatus) is a large, streamlined freshwater fish native to Oklahoma's big rivers and a species of greatest conservation need in the state.

Scientific Name: Cycleptus elongatus

Physical Characteristics:
  • These impressive fish can reach over 100cm in length, weigh 4.5+ kg, and live 20+ years.
  • Blue Suckers are distinguished by their torpedo-like shape, small elongated head, inferior mouth with fleshy papillose lips, and long falcate dorsal fin with 24-35 rays.

What to know

Habitat Distribution

  • In Oklahoma, Blue Suckers are found primarily in the Red River below Lake Texoma and its major tributaries, including the Muddy Boggy, Kiamichi, and Little River systems.
  • They historically occurred throughout the Red and Arkansas river drainages but are now mainly restricted to big-river environments.
  • Blue Suckers prefer swift-flowing water with gravel or rocky bottoms.

Key Locations

  • Red River below Lake Texoma and its major tributaries, including the Muddy Boggy, Kiamichi, and Little River systems.
  • Target tailwater areas below major dams like Hugo Dam on the Kiamichi River and Denison Dam on the Red River.

Specific Spots

  • Focus on deep pools and channel edges with rocky or gravel bottoms.
  • Target tailwater areas below major dams where these fish concentrate in swift current.
  • During spawning season, they move from deep river pools into tributaries and shallow riffle areas over gravel and cobble substrates.
  • They are often found in tailwater areas below dams, drawn by the swift water from dam releases.

Blue Sucker FAQ

Answers from onWater's species guide.

When is the best time to fish for Blue Sucker in Oklahoma?

Best opportunities occur during their spawning runs from February through May, particularly in March and April when water temperatures are 12-20°C. They spawn from April-June when water temperatures reach 12-20°C, with peak activity between March and May.

How do you catch Blue Sucker in Oklahoma?

Small worms, aquatic insect larvae, and natural baits fished on the bottom may attract them, though success rates are extremely low.

What do Blue Sucker eat?

They're bottom feeders that consume aquatic insects, insect larvae, crustaceans, plant material, and algae.

Where do Blue Sucker live in Oklahoma?

In Oklahoma, Blue Suckers are found primarily in the Red River below Lake Texoma and its major tributaries, including the Muddy Boggy, Kiamichi, and Little River systems. They historically occurred throughout the Red and Arkansas river drainages but are now mainly restricted to big-river environments.

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