New Findings Reveal Origin of Enigmatic Golden Orb Discovered in Alaskan Waters
A golden orb discovered during a 2020 NOAA expedition off Alaska's coast has been identified as a remnant of a cuticle secreted by a large sea anemone, Relicanthus daphneae.
Researchers have confirmed that a mysterious golden orb found during a National Oceanic and Atmospheric Administration (NOAA) expedition in 2020 is a remnant of a cuticle from the large sea anemone Relicanthus daphneae. This discovery, detailed in a recent study, involved extensive analysis of the orb's structure and genetic material.
The orb was first observed during the Seascape Alaska 5 expedition while mapping deepwater habitats. Initial reactions from researchers included a mix of curiosity and intrigue, with some expressing a desire to physically examine the orb. However, three years of research, including genomic analyses, revealed that it was not an animal but rather a part of the base of the anemone used for anchoring to rocky surfaces.
Allen Collins from NOAA fisheries noted, "This turned into a special case that required focused efforts and expertise of several different individuals." The researchers eliminated the idea that the orb was a living organism after confirming it contained no animal anatomy. The analysis disclosed the presence of cnidocytes, specific stinging cells associated with corals and anemones, and further whole-genome sequencing determined the DNA was from R. daphneae.
William Mowitt, acting director of NOAA Ocean Exploration, emphasized the importance of such explorations in revealing the ocean's secrets and contributing to the understanding of its resources and their potential benefits.