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
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
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
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
Explore the 33 Stewardship Areas along the coast of Long Island Sound.
View Atlas »
EPA is proposing to aggressively reduce nitrogen, a nutrient that in excess leads to poor water quality.
View Strategy »
Giving thanks to a refuge for birds at the mouth of the Connecticut River.
View Multimedia Gallery »
View health status and trends for LISS ecosystem targets and supporting indicators.
Learn more »
Learn 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.
$2.57 Million in Grants Awarded to Improve the Health of Long Island Sound - Top federal and state environmental officials announced 36 grants totaling $2.57 million to local government and community groups to improve the health and ecosystem of Long Island Sound. Continue Reading
Clean-up starts campaign to break single-use plastic habit - LISS launches #DontTrashLISound social media campaign. Continue Reading
STAC AgendaContinue Reading
HRSWG AgendaContinue Reading
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