This weekend, our aerial survey researchers spotted four North Atlantic #RightWhales south of Nantucket! 🐋🐋🐋🐋 Sightings of three or more right whales trigger the National Oceanic and Atmospheric Administration (NOAA) to issue a voluntary "slow speed zone" for boaters, which is now in effect until September 25. All mariners are encouraged to slow down to 10 knots or below in these Dynamic Management Areas to help prevent boat strikes with these critically endangered whales. 📸: New England Aquarium, taken under NMFS permit #25739 #NorthAtlanticRightWhales #CriticallyEndangered #DynamicManagementArea