The turquoise water of Hōnaunau Bay in Hawaii, an area popular with snorkelers and divers, is teeming with spiny creatures that threaten to push the coral reef “past the point of recovery,” new ...

This study measured the growth rate of coral reefs in Honaunau Bay, Hawaii, using on-site data gathering and aerial imagery. Researchers found that the reefs are being eroded by sea urchin populations ...

Green Sea Urchin (Strongylocentrotus droebachiensis) A close up of a Green Urchin photographed while scuba diving in British Columbia, Canada. Often harvested for uni ...

Scientists call long-spined sea urchins "the lawn mowers of the reefs" because they eat algae that could otherwise smother reef ecosystems and kill corals. That's why researchers affiliated with the ...

APOLLO BEACH, Fla. - Important marine research is underway in Apollo Beach as researchers work to better understand the relationship between coral reefs and sea urchins—two species critical to the ...

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 ...

A parasite that devastated long-spined sea urchins in the Caribbean and Florida in 2022 has caused another die-off more than 7,000 miles away in the Sea of Oman. The discovery, led by researchers at ...

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 ...