Just an average day for MBARI engineers on a maintenance run. 🛠🌊🛠⁣ ⁣ MBARI’s M1 mooring has been collecting data at the mouth of Monterey Bay Canyon since the 1990s. Sensors on the mooring measure ocean properties over time, including water temperature, salinity, dissolved oxygen, chlorophyll fluorescence, pH, and pCO2 both in the air and just below the surface. ⁣ ⁣ Periodically, MBARI’s Mooring Operations Group performs maintenance on the instrument—replacing sensors, cleaning off any organisms (like goose barnacles and algae) growing on the instrument, and other basic repairs to keep it functioning properly. The divers on this trip got a surprise visit from a school of half moon fish, Medialuna, that were gathered near the mooring bridle. Video footage by Jared Figurski. ⁣ ⁣ #Marineoperations #scuba #diver #scubadive #mooring #oceanography #oceantech #ocean #boatride #underwatervideo #MBARI #engineer #scienceandengineering #MontereyBay #MontereyCanyon⁣