I got this news Article from WWW.Science.com

This article was published on-4-19-23

Marine biologist at Florida University say they have solved the mystery of a mass die off of a long spined sea urchins from the U.S. to the Caribbean .The Scientist blame a miroscopic single celled parasite for the die off which took early hold last year. It effected Diadema antillarum urchins lose their spines And suction then succumb to disease .

The researchers from Tampa University of South Florida also suspect the organism a ciliate known as a philaster may have been responsible for wiping out about 98% of sea urchins a similar episode in the region in 1980s .