How are the blue tears formed in Pingtan Island, Fujian Province?

Blue tears in Pingtan Island, Fujian Province will only appear when the water temperature, weather, high tide and wind direction are consistent. Blue tears are composed of plankton in the sea. If the climate in the sea meets the conditions of blue tears, they will emit blue light after being stimulated, and blue tears will form along the coast.

How are the blue tears formed in Pingtan Island, Fujian Province?

There are two main kinds of blue tears in Pingtan Island, one is firefly and the other is luminous. Nocturnal algae are common, the total number is about 90%, and fireflies are rare, the total number is about 10%. Blue tears and their combined light are the strongest.

Blue tears, also known as anemones, night insects, luminous algae and so on. It usually appears in the middle of the night. When a large number of noctilucent insects glow due to the disturbance of waves, fish or ships, a large area of blue light will appear along the coast. Fishermen used to call it sea fire, sea ghost fire and sea ghost.