Chesapeake Bay Program Director
Mark Bryer Chesapeake Bay Program Director © Severn Smith / TNC

Our People

Mark Bryer

Chesapeake Bay Program Director

Bethesda, MD

  • Areas of Expertise

    ecosystem services, policy, ecological economics, oyster reef restoration


As director of TNC's Chesapeake Bay program, Mark coordinates our efforts across six states and Washington, D.C., focusing on both policy and conservation projects to improve water quality, support abundant fisheries and enhance and restore critical habitats in North America’s largest estuary.

Mark's first position with TNC was a summer internship in 1994.  Since then, he has held a number positions that have helped conserve nature all over the world and in his own backyard.

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I feel fortunate to wake up every day and know we’re making a difference in this watershed where I grew up and that I dearly love.


  • MES, Yale University, School of Forestry and Environmental Studies
  • B.S., Civil Engineering, Lehigh University
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Program Benefits

The Maryland/DC chapter's work is focused on two areas where outcomes can have the greatest impact: protecting clean water and tackling climate change.

Clean water doesn’t just matter in the mid-Atlantic. Our work—whether on farms, in cities or in the Chesapeake Bay—can inspire solutions around the world. 

  • Improving bay health through restoring plants, animals and habitats, including completion of the largest oyster restoration project in the world
  • Establishing alliances with agribusiness to keep nutrients on farms and out of waterways, improving water quality and crop production
  • Creating a novel water management policy for the Susquehanna, the largest river on the east coast and largest tributary of the Chesapeake Bay
  • Improving water quality and lowering costs for water-supply treatment through forest protection and wetland restoration
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