安达曼海浅沙泻湖海底新形成的底栖蓝藻菌席水华

era pans slowly across a benthic Cyanobacteria mat (BCM) bloom on a sandy lagoon floor, revealing dense clusters of fine, upright stalactite-like formations built from trapped gas and sediment. Each structure is held together only by a fragile bacterial mucus matrix binding sand grains in place, a fragile bond that collapses instantly if the mat is disturbed by current or contact. 4K, wide angle, vertical medium panning shot, scuba diver POV. Ko Haa Archipelago, Andaman Sea, Krabi Province, Thailand.