Under the sea
The bottom of Salem Sound may look like mud to many people, but to Dr. Brad Hubeny, the sea floor illustrates an intricate story of the history of Salem Sound. On Wednesday evening at 7, Hubeny will present an illustrated talk titled “History Revealed by the Sea Floor,” during which he’ll share the story of Salem Sound as revealed by sediments near the sewage outfall off Great Haste Island. A professor of geological sciences at Salem State University, Hubeny has been collaborating with Salem Sound Coastwatch since 2010, collecting data on water quality and sampling sediments, and is currently conducting a three-year study of turbidity in Salem Harbor with Salem Sound Coastwatch. Hubeny specializes in coastal oceanographic research and uses sediment records that have accumulated at the bottom of lakes and estuaries to reconstruct past human influences, including pollution. Wednesday’s lecture, which takes place at Abbot Public Library, 235 Pleasant St., Marblehead, is the second program in the 2014 “Underwater in Salem Sound” Lecture Series jointly sponsored by Salem Sound Coastwatch and Abbot Public Library. Admission is free and open to the public. For more information, visit www.abbotlibrary.org or www.salemsound.org, or call 978-741-7900.