Marine Biologists Unveil Extraordinary Translucent Deep-Sea Discovery
A new deep-sea isopod species has been discovered in the Exuma Sound, Bahamas, and has been named Booralana nickorum. This large-eyed translucent crustacean plays a vital role in deep-sea ecosystems, contributing to the ecological health and balance.
By Beth Snider · January 28, 2024
Booralana nickorum, a newly identified species of deep-sea isopod has been discovered by an international team of marine biologists exploring the Exuma Sound off the coast of the Bahamas. The crustacean, with its translucent body and remarkable giant eyes, was found at a depth of 1,800 feet, offering a fascinating glimpse into the mysteries of the ocean’s depths.
In a study published in the journal Zootaxa, the researchers, led by Dr. Oliver Shipley of the School of Marine and Atmospheric Sciences (SoMAS) at Stony Brook University, shed light on the characteristics of Booralana nickorum. This deep-sea isopod belongs to the genus Booralana and has been on Earth for 300 million years.
The crustacean’s transparent exoskeleton, coupled with its large compound eyes, serves a critical purpose in its survival strategy. Living at depths exceeding 500 meters in the cold and dark waters of the Exuma Sound, Booralana nickorum does not need pigmentation, resulting in its white and slightly translucent appearance.
Using innovative techniques such as LED lights and glow sticks, scientists were able to study the creature’s features.
"You can see its guts and things"
The discovery shows the creature’s extraordinary physical traits and gives hints at its potential role in maintaining the health of the deep-sea ecosystem.
Isopods fulfill a crucial function in the ecosystem by accelerating the breakdown of plant or animal material, thereby allowing the broader ecosystem to utilize these energy sources. There is evidence indicating that certain isopods, particularly those belonging to the Booralana genus, may engage in predation on living vertebrates, such as sharks, for their sustenance.
Measuring between 2.2 to 3 inches (55 to 76 millimeters), Booralana nickorum boasts a considerable size advantage over its terrestrial counterparts. This size advantage allows the deep-sea scavenger to patiently wait on the seabed for food to fall from above which can be crucial in an environment where food is scarce.
The research team made their groundbreaking discovery during two expeditions in April 2014 and February 2019, conducted by OceanX and the Cape Eleuthera Institute. Employing various methods, including baited eel traps with specialized lights, the scientists were able to capture and study the elusive isopod in its natural habitat. As marine biologists delve deeper into the mysteries of the deep sea, more revelations about undiscovered species and their roles are likely to surface.