MassBays National Estuary Program (MASSBAYS)

MassBays National Estuary Program

MassBays is an EPA National Estuary Program dedicated to protecting, restoring, and enhancing the estuarine resources of Ipswich Bay, Massachusetts Bay, and Cape Cod Bay.


251 Causeway St., Suite 800, BOSTON, MA 02114
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Who we serve

Established as a National Estuary Program in 1990, the MassBays region covers more than 1000 miles of coastline, from the tip of Cape Cod Bay to the New Hampshire border, and serves 50 coastal communities. To provide technical assistance to all communities in the planning area, MassBays has teamed up with five partnering organizations to host MassBays regional coordinators. The regional coordinators work closely with communities to implement program goals and objectives in five coastal subregions: Upper North Shore, Lower North Shore, Metro Boston, South Shore, and Cape Cod.

About MassBays

For a complete list of our programs visit the Site Map.

The EPA National Estuary Program

The EPA National Estuary Program (NEP) was established under Section 320 of the Clean Water Act to protect and restore the water quality and ecological integrity of estuaries of national significance. There are currently 28 estuaries from around the U.S. in this program. To learn more about the NEPs visit the NEP Story Map. This interactive tool describes the vital resources of each estuary and highlights the role of local partnerships in protecting these resources and addressing the issues they face. 

Go to the NEP Story Map


Help count the fishes!

It's spring in the estuaries, and MassBays' Regional Coordinators are seeking volunteers to count herring as they make their way upstream. Shifts are only 10 minutes each, several times a week during the month-long run. 

Results of volunteer counts inform fisheries management, document the need for restoration or improvement of fish runs, and track impacts of restoration projects.   

To volunteer on Cape Cod, call or email Jo Ann (508-619-3185).
On the South Shore, visit the NSRWA website and sign up for training using this form.

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