Coral reef halos, visible from satellites, can indicate reef health by reflecting predator presence and coral layout.

The parrot fish are an integral part of the coral reef ecosystem because they eat the excess algae, which allows the coral to survive. The result was that algae growth soon overtook the coral and ...

where coral fragments grown in nurseries are transplanted to the reef. Restoration can take other forms, including removing species that eat corals (such as parrot fish), transferring coral spawn ...

Parrot fish are available whole, gutted and frozen. They are available year round. Many reef-dwelling species are considered to be over-exploited. If you have concerns ask your fishmonger.