“Seabed observation plays a major role in safeguarding marine systems by keeping tabs on the species and habitats on the ocean floor at different depths. This is primarily done by underwater robots that use optical imaging to collect high quality data that can be fed into environmental models, and compliment the data obtained through sonar in large-scale ocean observations.

Different underwater robots have been trialed over the years, but many have struggled with performing near-seabed observations because they disturb the local seabed by destroying coral and disrupting the sediment. Gang Wang, from Harbin Engineering University in China, and his research team have recently developed a maneuverable underwater vehicle that is better suited to seabed operations because it doesn’t disturb the local environment by floating above the seabed and possessing a specially engineering propeller system to manuever. These robots could be used to better protect the seabed while studying it, and improve efforts to preserve marine biodiversity and explore for underwater resources such as minerals for EV batteries.”

From IEEE Spectrum.