Connecticut Department of Energy & Environmental Protection

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 Fishes of CT - Table of Contents

How to Observe and Appreciate Fishes
How to Use This Guide
Guide to Families of Connecticut Freshwater Fishes
Fish Species Photos and Descriptions
 

Text and images adapted from Jacobs, R. P., O'Donnell, E. B., and Connecticut DEEP. (2009). A Pictorial Guide to Freshwater Fishes of Connecticut. Hartford, CT. Available for purchase at the DEEP Store. As new species are discovered in Connecticut, original entries are also added here. These include Knobfin Sculpin, Eastern Mosquitofish, and Western Mosquitofish.

Content last updated in November 2024.