A blue groper eating a long-spined sea urchin fed to it by a diver. While it’s known that blue groper fish can eat long-spined sea urchins, the aim of this study was to reveal how often it happens in ...

When Mya Breitbart heard that something was killing off sea urchins en masse, she thought: Oh no, not again. The long-spined sea urchin—a fist-size ball of black defensive spines—is a crucial and ...

Scientists investigating a widespread and sudden die-off of long-spined sea urchins that spread nonstop for much of 2022 across the Caribbean and Florida have identified a tiny parasite as the killer.

A team of researchers has identified a single-celled organism called a ciliate as the cause of a massive die-off event to a marine animal vital to coral reef health. The search for the 2022 killer ...

Last year, sea urchins in the Caribbean started getting sick — shedding their spines, dying off and throwing reef ecosystems into chaos. Now, scientists think they’ve caught the killer in this marine ...

There seemed to be a deadly plague lurking under the crystal blue waters of the Caribbean last year, killing sea urchins at a rate that hadn't been seen in decades. For months, no one knew what was ...

NEW YORK (AP) — Last year, sea urchins in the Caribbean started getting sick — shedding their spines, dying off and throwing reef ecosystems into chaos. Now, scientists think they’ve caught the killer ...

The long-spined sea urchin (Diadema antillarum) is a key algae grazer in the Caribbean. A disease outbreak in the 1980s killed off most of the urchins, resulting in the overgrowth of many Caribbean ...

STORY: An entire species of sea urchin in the Gulf of Aqaba has been wiped out .. by a deadly epidemic that's spreading through the Red Sea. An Israeli research team from Tel Aviv University says this ...

Scientists are trying to raise as many urchins as possible because they eat algae that could otherwise smother reef ecosystems and kill corals. Researchers have identified algae on which larval sea ...

Australian scientists have found an unlikely accomplice in the fight against an exploding sea urchin problem that is stripping the continent's temperate reefs bare. The East Australian Current is ...