Tracking River Herring
SERC Biological Technician Gabriella Marafino collecting a water sample for eDNA analysis. Credit: SERC. Two types of river herring, alewife and blueback herring, used to be abundant in tributaries of the Chesapeake Bay . These days, however, herring are threatened by habitat loss, overfishing, and dams that block the route to their spawning locations. [...]