Virginia Institute of Marine Science volunteer Gabrielle Saluta explains the biology of a Chesapeake Bay Blue Crab to attendees at Saturday’s Marine Science Day. Despite rain much of the afternoon, the event was well-attended by families. In addition to marine life, there were exhibits on marsh health, survey technology, a seafood cooking demonstration and a costume contest, among other activities. Below, PhD student Daniel Wong (left), volunteer Noah Iveson (right, in purple), and Assistant Professor Dongli Gong (not pictured) gave demonstrations of the technology used to survey above and below the waterline of the Bay. At center is a survey drone, which is flanked on either side by underwater gliders. The gliders collect data like salinity, water temperature, and phytoplankton concentration and can stay underwater for extended periods of time.  ...