GoKawiilSmithsonian-led ARMS project tracks decade of life on deep coral reefs
Researchers led by Luiz Rocha deployed standardized collection devices called ARMS (Autonomous Reef Monitoring Structures) at various depths—around 10, 50, and 100 meters—at sites including Palau, Guam, the Marshall Islands, and French Polynesia between 2016 and 2018. The stacked-plate structures act as artificial mini-reefs, becoming colonized by larvae of sponges, corals, shrimp, mollusks, and other organisms, which scientists later retrieve and study to compare biodiversity across depths and locations.