2023 Expedition

Deep Sea Biodiversity & Ancient Seamount Exploration near Johnston Atoll

August 2 – 29, 2023

Expedition Partners

Lead Scientist
Lead Scientist
Expedition Leader

In August 2023, we will return to the Central Pacific for 27 days of exploration within the Johnston Atoll Unit of the Pacific Remote Islands Marine National Monument (PRIMNM), starting and ending in Honolulu. Complimenting exploration achievements from last season, the ship will now explore a region of ancient seamounts northwest of Johnston Atoll utilizing ROV dives and mapping surveys

With the 2014 expansion of PRIMNM, the Monument expanded to become what is now the second-largest marine protected area in the United States. While recent expeditions have increased our baseline knowledge of the deep-water resources of PRIMNM, large areas remain completely unexplored, particularly towards the northern boundary of the Johnston Unit of PRIMNM. Further exploration in these areas is urgently needed to address deep-water habitat scientific knowledge gaps, as a management plan is under development now for the region. 

This 27-day expedition is funded by NOAA Ocean Exploration via the Ocean Exploration Cooperative Institute.


successful ROV Dives
samples collected
live ship-to-shore interactions
32,259 km2
of seafloor mapped
live stream views

Meet the Team

Gallery Highlights

Expedition Posts