About us

Meet Scott and Tree Mercer,
the people behind the Mendonoma Whale and Seal Study

This image shows Scott and Tree Mercer, the couple behind the Mendonoma Whale and Seal Study

Scott Mercer began studying marine mammals in 1974 in Monterey Bay with an extended study of the feeding ecology of sea otters. After relocating to his native New England, in 1978 Scott founded New England Whale Watch, Inc. as an opportunity to offer first hand ocean life education to the public, and for him to collect data on the whales being observed. Scott was recently interviewed, for his role as a pioneer in Atlantic Coast whale watching, by the National Oceanic and Atmospheric Administration as part of a history of the whale watching industry in New England.

Scott was cofounder of the Brier Island Ocean Study, a research station in Nova Scotia, Canada. He has led offshore and overnight excursions to the Atlantic Outer Continental Shelf, in the Caribbean, Nova Scotia and Newfoundland, Canada. In 1982 Scott coauthored The Great Whale Book, for 14 years he taught a marine mammal class for the University of New Hampshire’s Continuing Education, as well as science classes for the Southern Maine Community College.

In 2014, Scott with his wife Tree Mercer, founded the Mendonoma Whale and Seal Study to document the occurrence, diversity, and behavior of marine mammals along the coast from Northern Sonoma County to Southern Mendocino County. They present their data and findings at many local and international conferences.

In 2021, the Mercers were featured in an extensive article in the Los Angeles Times about the Unusual Mortality Event of gray whales. In 2022 they were included in a documentary film about gray whale research created by the UC Berkeley Department of Graduate Journalism.

Tree Mercer has a Masters Degree in Science Education, and taught Biology, Life Science, and Physics on Long Island, New York for 35 years, as well as coaching three varsity level sports for as many years. Tree coordinates and organizes the data she and Scott collect. She designs their power point lectures for in-person and ZOOM lectures, as well as their research presentations at conferences.