Cauliflower Coral
Pocillopora damicornis
A reef-building coral of the Indo-Pacific — recently uplisted to Endangered as warming seas push reefs toward collapse.
The Species
Cauliflower Coral (scientific name: Pocillopora damicornis) is a reef-building stony coral of the warm, shallow waters of the Indian and Pacific Oceans. Named for the dense, bushy branches that crowd together like a head of cauliflower, it is a hard coral: it lays down a calcium-carbonate skeleton, colony by colony, slowly building the reef structure that countless marine species depend on.
It has a conservation status of Endangered.
Once considered widespread and safe, this coral was recently reassessed and uplisted to Endangered — a measure of how fast reefs are changing. Like all reef corals, it lives in partnership with tiny algae that give it both colour and food. When the water grows too warm, the coral expels these algae and bleaches white; if the heat lingers, it starves. Repeated mass-bleaching events, ocean acidification, pollution, and sedimentation have turned even a once-common coral into a warning sign for reefs everywhere.
Role in Ecology
Corals are the architects of the reef. By building and maintaining its structure, Pocillopora damicornis creates habitat, shelter, and nursery grounds for fish, invertebrates, and a vast web of marine life — ecosystems that support a quarter of all ocean species while covering only a sliver of the seafloor. Healthy coral cover also buffers coastlines from storm surge and erosion and sustains the fisheries and communities that live alongside the reef. The health of a single colony is, in miniature, the health of the ocean around it.
Cauliflower corals of the genus Pocillopora are part of India's own reef heritage, found among the rich coral systems of the Andaman and Nicobar Islands — a reminder that the fate of these reefs is not distant news, but a story unfolding in our waters.
Importance of Biodiversity
Biodiversity (or Biological Diversity) is a term that describes the variety of living beings on earth, and includes diversity across species, within species, and across ecosystems. It is vital to maintaining the balance of the ecosystem. According to scientific estimates there are 8.7 million species on the planet.