Diver recording beluga whale remains, White Sea
Diver recording beluga whale (Delphinapterus leucas) remains placed on the sea floor for an experiment investigating metabolism of bone by invertebrates. When whale carcasses sink to the sea floor in nature it is known as whale fall, though this term is usually used when this occurs in the deep sea. Whale carcasses create localised ecosystems as they provide a substantial amount of carbon and nutrients in regions where these resources are otherwise typically scarce. The whale used in this experiment died naturally. Filmed at a depth of 30 metres at White Sea Biological Station, Great Salma Strait, White Sea, Russia.