Freshwater

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• Rainbow Trout

  Rainbow trout seldom survive the summer in Connecticut and natural reproduction is rare.

• Codfishes

  Codfishes are characterized by having a single barbel on the middle of the chin.

• Atlantic Sturgeon

  Damn building, overfishing and pollution all likely contributed to the demise of Atlantic sturgeon in Connecticut.

• Kokanee

  Kokanee prefer relatively clear lakes with cold, well-oxygenated water.

• Pupfishes

  The pupfishes and killifishes are very similar and were once included in the same family.

• Banded Killifish

  Prefer shallow, still areas of lakes and ponds and slow-flow areas of larger rivers and streams.

• Longnose Sucker

  Recent attempts to find longnose suckers in Connecticut have failed.

• Silversides

  Two estuarine/marine species of silversides exist in Connecticut. Both are schooling fish that occasionally enter freshwater areas of coastal rivers and streams.

• 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.

• Families of Connecticut Freshwater Fishes

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