In late April, spring is bright.
In the bright spring season, I stayed in Pingtan Island in Fujian Province for a few days, and I was fortunate to encounter the "blue tears" on the seashore, and I was excited and moved for a long time, which is still difficult to forget.
The scientific name of blue tears is the Heath's curved throat sea firefly, which is a mesomorphic insect, referred to as the sea firefly. Sea fireflies are plankton living in bays and are fluorescent animals. There is a structure called a luminous gland in the body of the sea firefly, which produces a light blue light when stimulated by the waves, etc. Sea fireflies generally appear in June and July, and they are banded along the beach. The species is known as blue tears in Malaysia and Taiwan for its bioluminescence, the blue color produced by the reaction between luciferin and luciferase.
When stimulated, heath's curved throat sea fireflies are discharged into the water with a yellow particle of fluorescein with a diameter of only one ten-thousandth of a centimeter, and colorless luciferase particles with a diameter of only two thousandths of a centimeter, as well as mucus produced by the luminescent glands, resulting in a light blue light. Certain glands emitted from living organisms contain substances that emit light. Chemical energy is converted into light energy through chemical reactions. Because the energy emitted is very small, it is called cold light.
It is said that the "blue tears" of Pingtan Island generally appear from April every year, and can be encountered until September with good luck. The talking landlord told us that it is easier to see in Grandma's Bay, and in our homestay we have to wait until there is a south wind to see more clearly and beautifully... This group of photos was taken on a night when the south wind was blowing strongly and it was really beautiful!
Perhaps, for the sake of this touching "blue tear", I will also go to Pingtan Island at the right time...