New coral species discovered in deep-sea cave: Emits green light when in danger

During deep-sea explorations in the limestone caves around Minamidaito Island, approximately 360 kilometers east of Okinawa, a team of Japanese researchers encountered a new creature not previously recorded in any database. The most striking feature of this tiny organism, which clings to the walls of an underwater cave 385 meters below the seabed and forms yellow clusters, is that it emits a short, powerful green light when subjected to contact.

The scientific study utilized remotely operated underwater vehicles (ROVs) from the Japan Agency for Marine-Earth Science and Technology (JAMSTEC). During the research, the unusual light glowing in the cave ecosystem was observed immediately after the underwater robot touched the creature. The data obtained showed that this organism is a brand-new species of coral with a previously undocumented bioluminescence capability.

The newly discovered species has been named "Corallizoanthus aureus." Experts stated that this coral does not glow continuously, but only protects itself with a short-lived light when there is external interference or a perceived threat. It was reported that this behavior is likely a defense strategy intended to startle predators or other threats.

According to scientists, deep-sea caves are still known to be largely unexplored regions due to challenging geographical conditions, low visibility, and high pressure. It has long been suggested that many species of life that have not yet been discovered and have never been observed elsewhere in the world may exist in such environments.

THE MYSTERIES OF THE OCEAN REMAIN UNSOLVED

Details regarding the discovery were published in the scientific journal Royal Society Open Science. According to the research team, the new findings obtained from the deep ocean support the fact that these ecosystems still hold many secrets. It was emphasized that there is a high probability of encountering unusual and unknown species in the underwater cave systems of the Pacific Ocean.

Marine creatures that possess bioluminescence are widely known in the scientific world; however, it was stated that examples that emit light only in moments of threat are extremely rare. For this reason, the discovered "Corallizoanthus aureus" has begun to be cited as an important discovery in marine biology.

News Source: 12punto