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White Sucker

White Sucker

White Sucker are native freshwater fish found throughout virtually every drainage in Massachusetts except Martha's Vineyard, Nantucket, and several smaller mainland coastal streams. These cool-water species are generalist benthic feeders.

Population status is unknown but likely declining due to habitat loss, though they remain widespread throughout the state's waters.

Scientific Name: Catostomus commersonii

Physical Characteristics:
  • These cool-water species are characterized by their elongated body and distinctive inferior mouth positioned downward for bottom feeding, with a rounded snout and lower lip about twice the size of the upper lip.
  • Adults typically reach 12-24 inches, with the Massachusetts record being 3 pounds 12 ounces from the Millers River.
  • During spawning season, breeding males develop gold dorsal surfaces and scarlet or black stripes along their sides, plus tubercles on their fins for territory defense.

What to know

Habitat Distribution

  • These fish prefer riverine habitats in gently sloping rivers and streams, with adults in larger rivers and juveniles in smaller streams.
  • They also inhabit nearshore areas of shallow drainage lakes, using tributaries for spawning while adults use lakes for growth.

Key Locations

  • Massachusetts waters like the Swift River, Millers River, Connecticut River, and Charles River tributaries.
  • Including the Connecticut River, Swift River, Millers River, and Charles River systems.

Specific Spots

  • Focus on slow-moving pools, current breaks behind logjams, eddies, and deep holes below overflows and dams where they congregate.
  • Look for areas with gravel and sand substrates mixed with silt overburden.
  • They seek slow-moving water like pools or current breaks, with deep pools or tributary junctions providing summer and winter refugia.
  • Target tributary junctions, areas below small waterfalls, and anywhere current slows near cover like undercut banks, fallen trees, or large boulders.

White Sucker FAQ

Answers from onWater's species guide.

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

Garden worms and nightcrawlers are the most effective baits, fished on the bottom.

What flies work for White Sucker in Massachusetts?

Employing patterns that sink quickly to match their natural food - nymphs, scud patterns, and worm imitations work well. In clear water use smaller flies, scale up in murky conditions.

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

The best fishing occurs in spring before spawning and fall when they're actively feeding in preparation for winter. Avoid mid-April through May when they're reproducing.

How do you catch White Sucker in Massachusetts?

Fish on the bottom where White Suckers naturally feed. Try 'pack bait' techniques borrowed from carp fishing - moldable dough made from bread crumbs and corn formed around sinkers to create a chum effect.

What do White Sucker eat?

White Suckers are generalist benthic feeders that consume invertebrates, fish e.g.gs, chironomid larvae, mayflies, amphipods, gastropods, and aquatic insects found on stream bottoms. They can identify different food types and expel unwanted items like detritus.

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