Freshwater

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• Fathead Minnow

  A popular baitfish, fathead minnows can be found at low abundance almost anywhere in Connecticut.

• Fallfish

  Our largest minnow species, the fallfish, is misidentified by many as trout or "dace".

• Home Aquariums

  Make a home aquarium with the beautiful native and introduced freshwater fishes of Connecticut!

• Central Mudminnow

  Although central mudminnows look superficially like minnows or killifish, they are actually more closely related to pickerel and pike.

• Creek Chubsucker

  Creek chubsucker populations have reportedly declined in streams that are subject to siltation.

• Atlantic Silverside

  Their abundance makes them very important forage fish for many marine predators such as striped bass, fluke and seabirds.

• How to Observe and Appreciate Fishes

  Learn about all the ways you can watch Connecticut's many freshwater fishes!

• Smelts

  Relatively small, silvery fishes with a very slender, cylindrical shape.

• Families of Connecticut Freshwater Fishes

  Learn the defining characteristics of Connecticut's freshwater fish families!

• 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.

• Sculpins

  Sculpins have a flattened head, large frog-like mouth and eyes, a scaleless body, and large fan-shaped pectoral fins.

• American Soles

  A small family limited to marine waters of the Western Hemisphere.

• Green Sunfish

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