Photos of the Long Island Sound

Research & Monitoring

Status and Trends: LISS Environmental Indicators

Land Use and Population

Land Use and population can strongly impact water quality in the Sound and its tributaries. These indicators include information about watershed population, development, and open space.

Land Coverage and Population

Watershed Population

This indicator uses US Census data to track the population living within the Long Island Sound watershed. View Indicator

Impervious Cover and Stream Health in Long Island Sound Basins

The indicator tracks the expansion of impervious cover (surfaces such as sidewalks and parkling lots) in the watershed. The impervious cover model predicts expected stream quality of a basin based on watershed impervious cover. View Indicator

Changes in Forest Cover in CT & NY

According to research from the University of Connecticut’s Center for Land Use Education and Research (CLEAR), forested land in the late 20th and early 21st century declined by 6 percent n New York and Connecticut from 1985 to 2006. View Indicator

Land Use Along 300-foot River Corridors in Watershed

The amount of naturally vegetated (e.g. trees, shrubs, wetlands, and grasslands, but not turf grass or agriculture) land in the riparian zone immediately adjacent to a stream or river is an indicator of hte health of the waterbody. View Indicator

Open Space

Open Space

This indicator tracks efforts by the state governments of Connecticut and New York to preserve open space through purchases of, or easements on, local properties. View Indicator

Watershed Management

Watershed Management

Watershed restoration strategies are effective ways to support vibrant and healthy aquatic life, and to minimize the negative effects of erosion, sedimentation, and flooding. This map tracks progress by Connecticut and New York towards a goal of having 50 percent of their respective areas in the watershed developing or implementing watershed restoration strategies. View Indicator

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