On August 22, 2005, University of Florida Marine Biologist Dr. Mikhail Matz was the first to identify and document the Chain Catshark's fluorescent properties in the Gulf of Mexico. Dr. Matz was on an expedition in the Gulf researching other types of bottom dwelling fish and sea life using a blue light. The technique they used involved turning on a blue light, turning off the white lights, closing the yellow filter on their underwater camera, and donning yellow goggles to allow them to see flourescence.

It was along a mud flat around 1,820 feet underwater that Dr. Matz first saw the meter-long Chain Catshark glowing under the blue light eminating frum his submarine. The purpose of the Catshark's fluorescence is still unknown, but Dr. Matz treasured the experience.