During the VISIONS'16 expedition ~114 previously deployed instruments will be recovered and replaced as part of annual maintaince on the OOI Cable Array. Although 80% of the instruments that were installed in 2016 are still operating, biofouling is an issue in the shallow water and hydrothermal vent environments. Instruments on the Cabled Array include those that measure physical, biological, chemical and geological parameters to understand myriad processes that operate in the ocean. These include earthquakes, volcanic eruptions, currents, impacts of ocean acidification and global warming, and hydrothermal flow with linkages to biological communities.
