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Brook Trout

Brook Trout

Brook Trout are Connecticut's only native trout species, naturally occurring throughout numerous small, cold streams across the state.

Brook trout populations in Connecticut have unfortunately declined significantly since the 1990s, with Connecticut DEEP electrofishing surveys showing they were present at only 68 of 107 historic sites during 2018-2019 sampling, often with reduced densities even where still present.

These declines result from floods, droughts, warm water temperatures, increased angling pressure, and competition with brown trout.

Scientific Name: Salvelinus fontinalis

Physical Characteristics:
  • These beautiful fish are characterized by light spots on a dark olive-green to grayish background, distinctive red or pink spots with blue halos along their sides, and wormlike markings on their backs.
  • Their pelvic, anal, and sometimes pectoral fins are orange or red with white leading edges followed by black stripes.
  • Wild Connecticut brook trout typically range from 4-10 inches, though the state record reached 9.2 pounds and 28 inches from the Hockanum River in Manchester.

What to know

Habitat Distribution

  • Brook trout inhabit small, cold streams with gravel or cobble bottoms, requiring tree canopies for shade and adequate cover from boulders, logs, and undercut banks.
  • Focus on headwater streams where habitat alteration and brown trout competition are minimal.

Key Locations

  • The Farmington River system, Housatonic watershed, and small tributary streams throughout the state's forested regions hold wild populations.
  • Connecticut manages 28 Wild Trout Management Areas specifically for brook trout and brown trout.

Specific Spots

  • Target small pockets of slow water around boulders, foamy bases of waterfalls, back eddies, and areas under logs or cutbanks.

Brook Trout FAQ

Answers from onWater's species guide.

What are the best lures and bait for Brook Trout in Connecticut?

Small spinners like Panther Martins and Mepps #2 are classic brook trout lures, particularly in firetiger, brown trout, and brown-pink patterns. Roostertails in white 1/8 oz work excellently in streams. Small jigs, spoons in silver and gold, and soft plastic worms are also effective.

What flies work for Brook Trout in Connecticut?

For flies, productive patterns include Woolly Buggers, Prince Nymphs, Pheasant Tail Nymphs, Elk Hair Caddis, and Parachute Adams. Terrestrial patterns like ants, beetles, and grasshoppers effective during growing season.

When is the best time to fish for Brook Trout in Connecticut?

The optimal seasons for brook trout fishing in Connecticut are late spring (April-May) and fall (September-November). They spawn in fall (September-October) when water temperatures reach 40-50°F - this is when anglers should avoid targeting them.

How do you catch Brook Trout in Connecticut?

These fish respond well to mayfly, caddis, and stonefly hatches. Overcast and slightly rainy days often improve success by increasing insect activity and making trout more comfortable feeding.

What do Brook Trout eat?

Brook trout are opportunistic feeders consuming worms, plankton, leeches, insects, mollusks, and small fish. They prefer adult and nymph forms of aquatic insects, with terrestrial invertebrates like beetles, caterpillars, spiders, and grasshoppers providing significant energy during the growing season.

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