• Clean Waters and
    Healthy Watersheds

    Improve water quality by reducing contaminant and nutrient loads
    from the land and the waters impacting Long Island Sound.

    Photo: The Lieutenant River where it empties into the mouth of the Connecticut River. Credit: Jerry Monkman/Ecophotography

    Learn More

  • Thriving Habitats
    and Abundant Wildlife

    Restore and protect the Sound’s ecological
    balance in a healthy, productive, and
    resilient state to benefit both people
    and the natural environment.

    Photo: An American oystercatcher with her young at Crane Island in Mamaroneck Harbor. Credit: Nadia Valla

    Learn More

  • Sustainable and
    Resilient Communities

    Support vibrant, informed, and engaged
    communities that use, appreciate, and
    help protect Long Island Sound.

    Photo: Volunteer project at Sheffield Island, part of the Norwalk Islands. Credit: Robert Burg

    Learn More

  • Sound Science and
    Inclusive Management

    Manage Long Island Sound using sound science
    and cross-jurisdictional governance that is inclusive,
    adaptive, innovative, and accountable.

    Photo: Students from the laboratory of UMass/Dartmouth Prof. Mark Altabet deploy a rosette sampler in the Western Sound. Credit: Mark Altabet

    Learn More

Stewardship Atlas


Explore the 33 Stewardship Areas along the coast of  Long Island Sound.
View Atlas »

Reducing Nitrogen


EPA is proposing to aggressively reduce nitrogen, a nutrient that in excess leads to poor water quality.
View Strategy »

Photo of the Month

The annual Hunts Point Fish Parade in the South Bronx, which will be held this year on June 16,  starts…
View Multimedia Gallery »

Ecosystem Targets

View health status and trends for LISS ecosystem targets and supporting indicators.
Learn more »


stratford2Learn more about the grant program  helping to restore and protect Long Island Sound, including restoring wetlands at Stratford Point. See Long Island Sound Futures Fund.


News Room


Sound Bytes Spring 2018 - Read the Spring 2018 issue of Sound Bytes. Download the Spring 2018 issue as a PDF here. Continue Reading


Sea Grants Request Preliminary Proposals for LISS Research Grant Program - Approximately $1,200,000 in funding is expected to be available for one or two year projects. Continue Reading


New TNC Website offers Solutions for Nitrogen Pollution - The website was created with support from the Long Island Sound Futures Fund. Continue Reading


March 22 CAC Meeting Rescheduled to April 9 - The meeting, canceled because of the heavy snow storm, will be rescheduled. Continue Reading


Futures Fund RFP Released - Approximately $2 million in grants is expected to be awarded. Continue Reading

Citizens Advisory Committee 2018 (Second Quarter) -

When: June 7, 2018 @ 9:30 am – 2:30 pm
Where: Housatonic Community College, 900 Lafayette Blvd, Bridgeport, CT 06604, USA

This meeting begins at Parking Lot, 114 Seaview Ave, Bridgeport. See Agenda. Agenda

Continue Reading

Habitat Restoration and Stewardship Work Group 2018 (Second Quarter) -

When: June 20, 2018 @ 10:00 am – 2:30 pm
Where: Edith G. Read Natural Park and Wildlife Sanctuary, 100 Playland Pkwy, Rye, NY 10580, USA


Continue Reading


Sound Bytes Spring 2018 - Read the Spring 2018 issue of Sound Bytes. Download the Spring 2018 issue as a PDF here. Continue Reading


Sound Bytes Winter 2018 - Read the Winter 2018 issue of Sound Bytes. Download the Winter 2018 issue as a PDF here.   Continue Reading


Sound Bytes Fall 2017 - Read the Fall 2017 issue of Sound Bytes. Download the Fall 2017 issue as a PDF here. Continue Reading


Sound Bytes Spring 2017 - Read the Spring 2017 issue of Sound Bytes. Download the Spring 2017 issue as a PDF here. Continue Reading


Year in Review 2016 - The spring 2017 issue of Sound Update focuses on Long Island Sound Study's Year in Review of 2016. Continue Reading

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About the StudyAbout the Study

The Long Island Sound Study (LISS) is a cooperative effort involving researchers, regulators, user groups and other concerned organizations and individuals. These people are working together to protect and improve the health of the Sound. Learn more