Connecticut
National Estuarine Research Reserve
Connecticut
National Estuarine Research ReserveConnecticut
National Estuarine Research ReserveConnecticut
National Estuarine Research Reserve
Connecticut
National Estuarine Research Reserve
78 Fish Species
The CT River has the highest fish diversity in the region, including threatened and endangered species
52,000+ Acres
The Reserve protects part of Long Island Sound, the Thames and Connecticut Rivers, and state parks and natural area preserves
Established 2022
The Reserve was officially designated into the National Estuarine Research Reserve System in January 2022
One of Connecticut's Greatest Natural Treasures
The Long Island Sound provides countless recreational opportunities, serves as a critical habitat for fish and other marine wildlife, and improves the quality of life in Connecticut. Designated in 2022, the Connecticut National Estuarine Research Reserve is one of 30 Research Reserves in the country that are focused on research, education, and stewardship of estuarine ecosystems. With more than 50,000 acres of marsh, upland, and open water in Long Island Sound, Fishers Island Sound, and the lower Connecticut and Thames Rivers, the Reserve provides essential habitat for wildlife, offers educational opportunities for students, teachers and the public, and serves as a living laboratory for scientists. Our vision is to have a resilient, healthy Long Island Sound estuary and watershed where human and natural communities thrive.
We acknowledge that the land comprising the Reserve is the territory of the Mashantucket Pequot, Mohegan, Eastern Pequot, Lenape, Narragansett, Western Nehântick, Hammonasset, Wappinger, Schaghticoke, and Wangunks peoples, who have stewarded it throughout the generations. We thank them for their strength and resilience in protecting this land, and aspire to uphold our responsibilities according to their example.
Visitors
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Learn MoreScientists
Learn more about the Reserve's research, monitoring, and restoration efforts
Learn MoreDecision Makers
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Learn MoreTeachers
Get your hands dirty as you explore our educational opportunities
Learn MoreExplore The Reserve
There are many ways to enjoy the Connecticut Reserve - by land or Sound! In addition to the 50,205 acres of subtidal area, the Reserve includes 1,955 acres of state-owned land. State park locations are accessible to the public and offer a variety of recreational opportunities. Natural area preserves and coastal reserves do not widely support active recreation but can easily be enjoyed via kayak or canoe from several nearby public launch sites.
CT Reserve boundary and sites
Recent News
- Now available and looking for feedback – Bluff Point Site PlanThe Connecticut National Estuarine Research Reserve, SLR Consulting, and CT DEEP have completed the project: Formulating a Site Plan to Support the Ecology and Management Needs of Bluff Point, in Groton CT. We are collecting comments and feedback on the project summary through May 31, 2025. The project summary is available HERE and, if you […]Posted on April 22, 2025
- Now accepting comments – Formulating a Site PlanNow accepting comments – Formulating a Site Plan to Support the Ecology and Management Needs of Bluff Point, in Groton CT The Connecticut National Estuarine Research Reserve, SLR Consulting, and CT DEEP have completed the project: Formulating a Site Plan to Support the Ecology and Management Needs of Bluff Point, in Groton CT. You are […]Posted on April 4, 2025
- Newsletter: 2025 Winter Updates (Feb 2025)Newsletter: 2025 Winter Updates (Feb 2025) This newsletter includes a letter from the Reserve’s Stewardship Coordinator, Jason Krumholz, Reserve highlights, and upcoming events. Read more here: 2025 Feb – Winter Updates.Posted on April 4, 2025