泰国海域的软珊瑚上，红藻过度生长造成的环境破坏

roalgae (Rhodophyta spp.) chokes the branches of a gorgonian sea fan in close detail, the camera orbiting to expose the full extent of overgrowth on this Andaman Sea reef. Nutrient runoff elevating nitrogen and phosphorus in coastal waters fuels blooms of this kind, compounded by sea temperatures recorded at 30 degrees Celsius on this dive. Algal coverage at this scale will eventually kill the host coral. 4K, vertical, close-up, orbiting camera move, scuba diver POV. Andaman Sea, Krabi Province, Thailand.