Problem

Threatened species of Scleractinia

Other Names:
Threatened species of Madreporaria
Threatened species of Hard corals
Threatened species of Stony corals
Threatened species of True corals
Nature:

Corals are invertebrates that are in symbiosis with an algae or a dinoflagellate. Coral bleaching occurs when the corals lose their zooxanthellae (the algae or dinoflagellate is what causes the beautiful colours of coral). The result of losing its algae causes the coral to bleach (become completely white). When corals are  stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn completely white.

Problem Type:
E: Emanations of other problems
Related UN Sustainable Development Goals:
GOAL 15: Life on Land
Date of last update
06.05.2019 – 16:33 CEST