Every year, over half a million river herring swim from the Boston Harbor up the Mystic River to lay eggs in freshwater. This amazing wildlife story is largely invisible. Check out this webinar to discover the remarkable story of river herring on the Mystic River and how the numbers from last year’s migration add to this story. Featuring: MyRWA Watershed Scientist, Andy Hrycyna and Ben Gahagan, Diadromous Fish Biologist with the Massachusetts Division of Marine Fisheries.