New research has uncovered a crucial clue to understanding the spread of "barrens" in the Great Southern Reef, which are threatening the reef ecosystem. "Barrens" are areas of low, or no, seaweed ...

Lacking natural predators and able to survive long after food sources are diminished, purple sea urchins are devastating kelp forests, an important carbon sink. The founders of a Newport startup have ...

Images of moribund D. africanum off Tenerife Island during the September 2022 mass mortality event: a) Moribund individual of D. africanum showing abnormal position and movement of the spines with ...

Research team: “This is an extremely violent global pandemic. The Caribbean, Red Sea, and the Indian Ocean are critical regions for the world’s coral reefs, and mortality rates for sea urchins in ...

NEW YORK — 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 ...

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 ...