DEEP headquarters at 79 Elm Street in Hartford has partially re-opened to staff and members of the public as of Tuesday, February 3. The DEEP records room has re-opened. The DEEP Central Permit Processing Unit (CPPU) will be open to the public starting on Wednesday, Feb. 4. For updates, click here

Freshwater

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  • Housatonic River

    Information about fishing the Housatonic River

  • Knobfin Sculpin

    A newly discovered invasive species, the knobfin sculpin has had a devastating impact on the Pomperaug River ecosystem.

  • Western Mosquitofish

    Western Mosquitofish have been widely introduced across the globe as a biocontrol with mixed results.

  • Eastern Mosquitofish

    The Eastern Mosquitofish has been widely introduced as a biocontrol with mixed results.

  • Mosquitofishes

    An introduction to mosquitofishes in Connecticut.

  • Sunfishes and Freshwater Basses

    There are eleven sunfish species in Connecticut, only three of which are native.

  • 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.

  • Brown Bullhead

    The brown bullhead is Connecticut’s most widely distributed and only native catfish species. They are good to eat, but are typically underutilized by anglers.

  • Bluegill

    Bluegills often inhabit shallow areas and are very easy to catch on a variety of small lures or baits (especially worms).

  • Rock Bass

    Rock bass have relatively large mouths, so are commonly caught by anglers seeking larger gamefish.

  • 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.

  • 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.