Long Island Sound Study Water Quality

An Estuary of National Significance

Improving Long Island Sound's water quality helps sustain one of the region's most beautiful resources. Learn more about water quality

Long Island Sound Study Habitat Quality

Restoring the Sound’s Tidal Wetlands

Tidal wetlands are one of 12 habitats being restored through the LISS Habitat Restoration Initiative. Learn more about habitats

Long Island Sound Study

Managing Watersheds

The Long Island Sound Futures Fund helps fund watershed groups to protect habitats and improve water quality in tributaries of Long Island Sound. Learn more about watersheds

Long Island Sound Study

Conserving Natural Areas

The goals of the Long Island Sound Stewardship Initiative are to conserve natural areas, increase access to the Sound, and plan for multiple uses. Learn more about the LISS


Volunteer for the Sound

From beach cleanups to monitoring tagged horsehoe crabs, you can volunteer to help restore and protect the Sound.

Act Now

Photo of the Month

Plover Beach

A piping plover on a beach at Sandy Point in New Haven.

About the Study

About 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

Sound Health

Sound Health Update

Our report on the health of Long Island Sound, from water quality to fish populations, with special features on climate change, audio reports on projects to improve the Sound, and what you can do to protect the Sound.

Read Report

News Room

Comprehensive Conservation & Management PlanUpdating Long Island Sound Study’s Comprehensive Conservation and Management Plan (CCMP) will help in efforts to restore and protect the Sound. Click the CCMP Update link learn more, and to visit our social media sites so you can comment on the plan.
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— Tweet along with us, or follow the conversation, at the Long Island Sound Citizens Summit. #LISsummit2014 / @SavetheSound Continue Reading

A replica of the Onrust, a Dutch ship that explored the Sound in 1614, sailing the Hudson River in 2009. Photo by Katy Silberger.


Citizens Summit Explores Past and Future — The 23rd annual Citizens Summit on April 25 will provide a forum for citizens to give their views on the restoration plans of Long Island Sound. It will also be an opportunity celebrate the 400th anniversary of Adriaen Block's exploration of the Sound. Continue Reading



20-Year Anniversary of the CCMP Issue — The winter 2013-2014 issue of Sound Update focuses on the 20-year anniversary of LISS's Comprehensive Conservation and Management Plan. Continue Reading


CCMP Framework Posted — Comments about the framework (draft Goals, Outcomes, Objectives, and Strategies) are welcomed. Continue Reading


MC Meeting Postponed — Due to the federal government shutdown, the Oct. 17 Management Committee meeting has been cancelled. Continue Reading

LISS Comprehensive Conservation and Management Plan


CT Listening Session Set for June 26 — The meeting will provide CT residents with an opportunity to have their say in the update to LISS's management plan Continue Reading


CCMP Mission — The original CCMP, completed in 1994, details how the states, federal agencies, and local partners address efforts to improve water quality, restore habitats, and protect fish and wildlife. Learn more in the Our Mission section of the website. Continue Reading



Sound Bytes Summer 2014 — Read the Summer 2014 issue of Sound Bytes. Continue Reading



Volunteer Stewardship Days this July — Help restore and protect the Sound this summer by attending one or all of our upcoming volunteer Stewardship Days. Continue Reading


2014 Work Plan — Each year the Long Island Sound Study develops a Work Plan that outlines the work being done with EPA funds to help achieve the goals of the Study’s  Comprehensive Conservation and Management Plan. The 2014 Work Plan describes  LISS  activities  planned with 2014 federal funding for Oct. 1, 2014-Sept. 30, 2015. It also highlights  projects […] Continue Reading

David Kozak, Collin Kozak, and naturalist at Farmington River lw res


Hey. There Used to be a Dam There — Pointing to where a dam was removed on World Fish Migration Day. Continue Reading

Volunteers helping to restore a trail at Sheffield Island, a Long Island Sound Stewardship Area.


Trails Day 2014 in Long Island Sound Stewardship Areas — National Trails Day weekend is a great opportunity for residents to enjoy the Long Island Sound coast and help out in a volunteer activity. Continue Reading

Connecticut Army National Guard helicopter takes off at Groton-New London Airport with a pallet of lumber for Great Gull Island. Photo by Joel Stocker/UConn Extension.


CT Army National Guard Aids Great Gull Project — 28,000 pounds of lumber transported to island with vbird sanctuary. Continue Reading

Sound Experiences (NY) Cornell Cooperative Extension provided educational experiences to more than 500 underserved students through land and shipboard-based activities about Long Island Sound’s marine ecosystem.


2014 Sound Futures Fund Grant Program Announced — LISS anticipates awarding approximately $1 million in grants this year. Continue Reading



Sound Bytes Spring 2014 — Read the Spring 2014 issue of Sound Bytes. Continue Reading

Sound Bytes


July 2014

Sound Bytes Summer 2014 — Read the Summer 2014 issue of Sound Bytes. Continue Reading

Sound Update


20-Year Anniversary of the CCMP Issue — The winter 2013-2014 issue of Sound Update focuses on the 20-year anniversary of LISS's Comprehensive Conservation and Management Plan. Continue Reading

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