Dr. Susan Zell is using the techniques of biochemistry to determine when young salmon are ready to migrate from their home waters to the sea. Marked “Public Information Photo University of Maine at Orono”.
Spiker, LaRue, “Dr. Susan Zell,” Mount Desert Island Historical Society, accessed March 19, 2025, https://mdihs.digitalarchive.us/items/show/10116.Item 10482
