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Fallfish

Fallfish

Fallfish are the largest minnow native to eastern North America and Massachusetts' biggest minnow species. In Massachusetts, fallfish are considered fluvial specialists found exclusively in rivers and streams - no populations exist in lakes or ponds.

They're very common in the Connecticut River Basin and readily found in central and western Massachusetts, but rare in eastern regions where populations have declined significantly over the past 40 years, particularly in the Charles River basin.

Scientific Name: Semotilus corporalis

Physical Characteristics:
  • Reaching up to 19 inches with the largest recorded Massachusetts specimen at 480mm.
  • They have moderately compressed bodies with large, distinct silvery scales (43-50 lateral line scales), olive to golden brown backs with black stripes, and distinctly silver sides.
  • Juveniles display a characteristic dark stripe from operculum to tail with a dark caudal spot.

What to know

Habitat Distribution

  • They're very common in the Connecticut River Basin and readily found in central and western Massachusetts, but rare in eastern regions where populations have declined significantly over the past 40 years, particularly in the Charles River basin.

Key Locations

  • In Massachusetts, concentrate efforts in the Connecticut River Basin and central/western regions where populations are strongest.

Specific Spots

  • Focus on pools, runs, and slow-moving sections of rivers and streams with rock and gravel bottoms.
  • Target areas with overhead cover like overhanging vegetation, undercut banks, and woody debris where they forage away from current.
  • They occupy slow-moving waters and pools for year-round foraging.
  • Fish depths of 30-50cm (1-2 feet) where they typically feed.

Fallfish FAQ

Answers from onWater's species guide.

What are the best lures and bait for Fallfish in Massachusetts?

Use spinners, jigs, plugs, small spoons, and live bait including worms, crayfish, and minnows. Streamers work particularly well since fallfish are opportunistic predators that will strike lures almost as large as themselves.

What flies work for Fallfish in Massachusetts?

For flies, use woolly buggers (effective throughout the season), pheasant tail nymphs, hare's ear nymphs, and zebra midges. Streamers work particularly well since fallfish are opportunistic predators that will strike lures almost as large as themselves.

When is the best time to fish for Fallfish in Massachusetts?

Spring and fall offer the best opportunities when they're actively feeding, while summer fishing focuses on deeper pools and shaded areas.

How do you catch Fallfish in Massachusetts?

Target fallfish from spring through fall, avoiding May spawning season when they migrate upstream to construct nests. They're most active during daylight hours and respond well to both fly fishing and conventional tackle.

What do Fallfish eat?

These generalist feeders start on plankton when under 1.5 inches, then transition to algae, insects, crayfish, and small fish including their own young.

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