Just a heads up to all my seagrass research friends. Seems like we have a swarm of lion's mane jellyfish that had made their way into Mass Bay. I've observed several large ones in Boston Harbor, at the Beverly pier and a half dozen small ones during a dive at Niles Beach. Water temperature at 25 feet in Gloucester harbor was 47 and clarity 15-20 feet. Lots of colorful burrowing anemones.