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  • Boston Light

    Protecting, Restoring and Enhancing Estuarine Resources

    MassBays is dedicated to protecting, restoring, and enhancing the estuarine resources of Massachusetts and Cape Cod Bays in five regions: Upper North Shore, Lower North Shore, Metro Boston, South Shore, and Cape Cod

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  • Water Sampling in Green Harbor River

    Ecological Restoration

    Realizing ecological improvements through partnership at the Green Harbor River Restoration project in the South Shore region

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  • Rowboat in Marsh

    Protecting and Restoring Salt Marsh

    Managing multiple uses of the Great Marsh in the Upper North Shore region

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  • Drains to Waterways

    Stormwater Management

    Working to improve the quality of stormwater to restore our estuarine resources in the South Shore region

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  • Thompson Island Salt Marsh

    Natural Resource Planning in an Urban Setting

    Habitat protection and restoration planning for estuarine resources in the Metro Boston region 

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  • Herring Run

    Monitoring Local Fish Populations

    Monitoring and restoring our herring runs in the Cape Cod and other regions

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  • Invasive tunicates in Boston Harbor

    Monitoring for Non-Native Species

    Performing long-term monitoring for non-native species in the Salem Sound and other regions

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Our Mission

MassBays is an EPA National Estuary Program dedicated to protecting, restoring, and enhancing the estuarine resources of Massachusetts and Cape Cod Bays. We envision a network of healthy and resilient estuaries, sustainable ecosystems that support the life and communities dependent upon them. We facilitate partnerships to prompt local, state, and federal action and stewardship, convening stakeholders on the local and regional level, providing scientific basis for management decisions, and informing decision makers about problems and solutions. Learn more About MassBays .

New Comprehensive Conservation and Management Plan Available for Public Review

As a result of two years of outreach to MassBays' partners and constituents, a new Comprehensive Conservation and Management Plan pdf format of 2015 CCMP for Public Comment
file size 2MB (CCMP) is available for public comment from April 15 to May 29. MassBays is seeking your input on our goals, strategies, and actions as we work towards our vision of sustainable ecosystems that support the life and communities dependent upon them. Visit the CCMP page to find out more and provide comments.

MassBays National Estuary Program 2016 Regional Service Provider RFR Announcement

MassBays is seeking proposals for Regional Service Providers (RSPs) to serve each of the five regions of the MassBays planning area: Upper North Shore, Lower North Shore, Metropolitan Boston, South Shore, and Cape Cod. RSPs will support the implementation of MassBays' Comprehensive Conservation and Management Plan in cooperation with a Local Governance Committee. One-year grants of up to $61,000 will be awarded for each region. For more information, to view the RFR, and download required forms, see the CommBuys website (RFR ENV 15 CZM 09). Proposals are due by 4pm on May 28th. 

MassBays Newsletter

Read the official newsletter of the Massachusetts Bays National Estuary Program. Subscribe to our newsletter and stay up-to-date on the activities of MassBays and our partners; gather information on the health of Massachusetts and Cape Cod Bays themselves; and learn how you can get involved.


The Massachusetts Bays National Estuary Program is a cooperative venture of the Massachusetts Executive Office of Energy and Environmental Affairs, the Massachusetts Office of Coastal Zone Management, and the U.S. Environmental Protection Agency.

Commonwealth of Massachusetts - Charles D. Baker, Governor; Karyn E. Polito, Lieutenant Governor
Executive Office of Energy and Environmental Affairs - Matthew A. Beaton, Secretary
Office of Coastal Zone Management - Bruce K. Carlisle, Director
Massachusetts Bays Program - Pamela A. DiBona, Executive Director

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