With sea urchin populations collapsing at unprecedented rates ... The implications of this crisis extend far beyond the loss of a single species – coral reefs, already under immense stress from ...

and the region shifted from a coral reef ecosystem to an algae-dominated one. Even 40 years later, the sea urchin population—and consequently the reef—has not recovered." In 2022, the disease ...

Infected sea urchin on Reunion Island. Photo credit: Jean-Pascal Quod.

Florida's coral reef Florida has an extensive coral reef ... A brewing threat for the reef is the sudden die-off of the black sea urchin in the region. The marine animal is "critical to ...

Along with parrotfish, this grazing urchin kept seaweed levels down, creating space for coral to grow. Parrotfish are now the sole grazers of seaweed on many Caribbean reefs, but fishing has ...

A new study led by Prof. Adi Torfstein from the Hebrew University and Prof. Oren Levy from Bar-Ilan University, in ...

Tropical rainforests and coral reefs are both highly complex ecosystems that are rich in biodiversity. Coral reefs are often described as underwater rainforests. -- Maui Ocean Center photo ...

and the region shifted from a coral reef ecosystem to an algae-dominated one. Even 40 years later, the sea urchin population — and consequently the reef — has not recovered." In 2022 ...