Freshwater Fishes of Connecticut

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  • Rainbow Smelt

    Smelt are important forage fish for large pelagic predators such as striped bass in estuaries and brown trout in lakes.

  • Inland Silverside

    Also known as “tidewater” silverside. They are less common than and very difficult to distinguish from the Atlantic silverside without magnification.

  • Slimy Sculpin

    Sculpins are sensitive to environmental degradation, requiring good-quality, coldwater streams to survive.

  • Green Sunfish

    Introductions of green sunfish have been implicated with adverse impacts on other fish species.

  • Mullets

    Mullets are torpedo-shaped fishes with horizontal mouths.

  • Yellow Perch

    Yellow perch are one of the state’s most popular panfishes. They actively feed during the winter, making them a staple for ice anglers.

  • White Sucker

    The white sucker is arguably our most important fish species.

  • Alewife

    Anadromous alewives are important forage fish for large gamefish such as striped bass and bluefish as well as many other animals, including osprey and marine mammals.

  • Yellow Bullhead

    They were first observed in Connecticut in the early 1980s at a few disjunct sites in the lower Housatonic and upper Quinebaug River drainages. Populations are expanding in both of these drainages, and individuals have recently been discovered in the Connecticut River drainage as well.

  • Redfin Pickerel

    Connecticut’s smallest pike species. They are typically mistaken for small chain pickerel by anglers.

  • Catfishes and Bullheads

    Catfish and bullheads have eight barbels around the mouth: two off the snout, two off the corners of the mouth, and four under the chin. These long barbels give the impression of whiskers, hence the name “catfishes.”

  • Channel Catfish

    The channel catfish is the state’s largest catfish species.

  • Hickory Shad

    The summer/fall recreational fishery for hickory shad is gaining in popularity.

  • Bowfin

    Often confused with the snakehead, the bowfin is an introduced fish that has grown rapidly in abundance since 2003.

  • Common Shiner

    With no obvious and distinctive characteristics, the common shiner is one of the most difficult fish to identify.