When did Xiamen Blue Tears appear?

The best viewing time of Xiamen Blue Tears is April, May, July and August.

April-May and July-August are the periods when blue tears frequently appear, and the chances of seeing blue tears around May Day are relatively high. Choose a fine night, and blue tears will gradually appear at night, especially in the early morning. The duration is about 1 hour, and the outbreak will last all night.

In the past two years, blue tears have appeared in Liu Shui Wharf, Beigang Village, Yangtze River Macau, Yuhai Square and Tannan Bay. The position of blue tears is not absolutely fixed. If you are coming to chase tears, you'd better pay attention to the weather forecast of Pingtan in advance, and the best viewing position will be given. In fact, Blue Tears is a luminescent algae that can produce light blue fluorescence.

Brief introduction of blue tears:

Blue tears is a plankton living in the bay, and it is a fluorescent animal. Fireflies have a structure called light-emitting glands in their bodies. When stimulated by waves, it will produce light blue. This species is vividly called blue tears in Malaysia and Taiwan Province Province of China because of its bioluminescence, blue light produced by the reaction between fluorescein and luciferase.

When the firefly is stimulated, it discharges yellow fluorescein particles with a diameter of only one tenth of a centimeter, colorless luciferase particles with a diameter of only two tenths of a centimeter, and mucus produced by light-emitting glands into the water, producing light blue light. Some glands excreted by organisms contain substances that can emit light, and chemical energy is converted into light energy through chemical reactions.

The above contents refer to Baidu Encyclopedia-Blue Tears.