St. Croix, USVI 207. Snorkeler retrieves ghost traps from the grip of a submersible. Ice diving in the Arctic requires special equipment and a smart dive plan. Diver riding a shrimp net watches a turtle escape through the excluder device. Elkhorn and staghorn corals provide beauty and complexity to the reef.
Divers collect shallow sediment cores to track coastal erosion processes.
Close-up underwater photography of coral reefs can only be done by divers. Divers use a suction sampler to collect animals living in the sand. School of jacks patrol the reef. Deploying a plankton net in a kelp forest to collect larval fish. Technical diver, using mixed gases to dive to 60 meters, decompresses.