Corals and Other Invertebrates Archives - Page 4 of 4 - Oceana

Cushion Star

The cushion star, like all sea stars, moves on a system of tube feet, so called because they are operated by a hydraulic system controlled by the main body. They are known to prey on corals and other sedentary animals, as well as decaying organic matter. They feed by inverting their entire stomach, through the mouth, and … Read more

Crown-of-thorns Starfish

These outbreaks may be a result of overfishing of the crown-of-thorns starfish’s primary predator, the giant triton or they may be a natural phenomenon. These starfish are known to be more successful at preying on large swaths of coral reefs when the corals are already stressed. During times of coral bleaching or stresses caused by human activities, … Read more