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aerial image of North Hampton, NH coastal neighborhood in the summer


Coastal Science for the Granite State

Coastal and marine resources are experiencing unprecedented stresses. Development and population growth along the coast, changes to commercial fishing and aquaculture industries, rising sea levels and increasing flood risk, habitat degredation and invasive species all threaten our nation's coastlines. New Hampshire Sea Grant works to address these issues through integrated research, extension, and education in the Granite State. 


marsh near Hampton beach

Coastal Research Volunteer Program

beach cleanup


Volunteers working on an oyster restoration project


lifebouy and boat

Marine Docent Program

Michael Chambers and Erich Berghahn work on an aquaculture raft in the mouth of the Piscataqua river near New Castle NH.

Our Work

people taking raised steelhead trout out of holding pens under the Judd Gregg Marine Research Complex.

Student Opportunities


Sea Grant News

Growing local, sustainable seafood we already know
Researchers from UNH are partnering with local chefs to develop a new aquaculture industry of saltwater striped bass. Learn More
The Aquafort brings sustainable nearshore finfish aquaculture to New Hampshire's working waterfront, providing an alternative source of local fresh se... Learn More
Helping growers stay afloat by helping our waters
In 2020, NH Sea Grant responded to oyster growers' needs by buying excess large oysters and using them for experimental restoration reefs, providing r... Learn More

UNH Today Stories

Researcher stands alone in marsh

Keeping Great Marsh Great

Keeping Great Marsh Great

Grant supports coastal research in N.H. and Massachusetts

Woman in white lab coat samples liquid outdoors with bright sun over her shoulder

Research Snapshot: Protecting Great Bay

Research Snapshot: Protecting Great Bay

Wastewater sampling tracks contaminents in environment

Aerial view of river with researchers working on sandbar

Research Snapshot: Protecting Smelt

Research Snapshot: Protecting Smelt

Understanding the role of Great Bay Estuary in this declining species

More UNH Today Stories