We are in the process of uploading previously recorded programs to our YouTube Channel.  Please check them out!

The monthly meetings of the Pembroke Historical Society will offer an array of programs that will enthrall lovers of local, state, and national history. In putting the roster together Stephen Sanfilippo, PHS program coordinator, sought to schedule outstanding presenters on a variety of topics, including historic photography, subsistence settlement, women’s history, the American Civil War, shore life, and maritime commerce and culture. Admission and refreshments are free, and donations to the PHS are welcome. Presentations are appropriate for adults, especially for educators and for those interested in Maine’s history, and for students, grades 5 through college. 

Pembroke Historical Society ZOOM

June 13, 2023 at 7:00 PM EDT

Rockweed seaweed in Maine: 

history, ecology, and climate

Presented by Dr. Robin Hadlock Seeley

registration link follows description


On Tuesday, June 13, 2023, at 7:00 PM EDT, on ZOOM, the Pembroke Historical Society is honored to have Dr. Robin Hadlock Seeley present “Rockweed seaweed in Maine: history, ecology and climate.” 

Rockweed is a type of seaweed that dominates Maine's rocky coast. Rockweed has been used throughout history as a garden fertilizer, as documented in the collections of the Pembroke Historical Society. But rockweed's role is much larger than just helping humans raise garden crops. Giant kelp forests are well-known for their ecological role below the low tide line. Rockweed forests similarly form a lush underwater habitat between high tide and low tide lines. Rockweed plays a huge role in the structure and functioning of Maine's coastal ecosystem, and is especially important to Cobscook Bay. In this talk Dr. Seeley will review rockweed's historical use and, through video and photography, explain rockweed's critical role in supporting Cobscook Bay wildlife, commercial fisheries, and climate mitigation in Maine. 

Dr. Robin Hadlock Seeley is an 8th generation Mainer and full time Pembroke resident. Her first visit to Cobscook Bay was as a Yale graduate student in 1982 to conduct Ph.D. thesis research, a project in historical ecology on native periwinkle species unique to Cobscook Bay. She is a 2022 Natural Resources Council of Maine Conservation Leadership awardee for her work on rockweed conservation, she serves as Executive Director of the Maine Rockweed Coalition, and she is a professionally certified Senior Ecologist through the Ecological Society of America. Her videography and photography have earned local Maine awards. Her current research is funded by Eastern Maine Conservation Initiative and a Cornell University Podell Endowment Award for Research and Scholarship. 

Click on the link following the program description. Fill out the form. Submit. You will receive verification by email. For additional information, write to

Photo credit:  Stephanie Tickner