Timetable and location of Xiamen Blue Tears 2022
1, viewing time
April-May and July-August are the high frequency periods of blue tears every year, and the chances of seeing them in the following time will be higher and higher!
Attention! The chances of seeing blue tears around May Day will be even greater! Choose a good night to go,
Blue tears gradually appear at night, and the blue tears in the early morning are the best.
Duration: 1 hour or so, and the outbreak will last all night.
From 20 10 to 20 12, blue tears appeared in Liu Shui Wharf, Beigang Village, Changjiang Bay, Yuhai Square and Tannan Bay.
The place where blue tears appear is not absolutely fixed. If you are looking for tears, you'd better pay attention to the weather forecast in Pingtan in advance, which will give you the best viewing place.
2, the viewing point
In fact, "Blue Tears" is a noctilucent algae that can produce light blue fluorescence, naturally distributed in Fujian coastal areas and Taiwan Province Province. This noctilucent algae is easy to gather locally under the action of tide, wind and water flow, and will produce light blue fluorescence when stimulated by the outside world.
Late spring and early summer are suitable for noctiluca scintillans to breed. When the density of noctiluca in seawater is high, it is easy to form "blue tears" visible to the naked eye.
3. What are blue tears?
Seeing the name "Blue Tears", I can't help thinking of a dreamlike scene. In fact, its true identity is some luminous creatures in the ocean. Because summer often happens in Fujian, it brings a wave of enthusiasm to these places every year.
There are two kinds of organisms that cause blue tears: one is dinoflagellate, which is the reason given by most marine experts; Another way of saying it is marine microorganisms, marine fireflies.
Nocturnal algae is a unicellular organism with transparent spherical cells, which feeds on other algae all the year round (it can be understood as insects). According to the research published by Taiwan Province Ocean University in, from April to June every year, a large amount of salt-rich fresh water in the upper reaches of Minjiang River will be brought into the ocean, leading to the rapid proliferation of plankton such as diatoms in the ocean.
Diatoms are the favorite food of night bugs. When the temperature is suitable and the seawater is eutrophic, noctiluca scintillans will multiply in large numbers, which is the premise of ocean luminescence. At the same time, research shows that if the seawater temperature exceeds 27, noctiluca will disappear, and even if the temperature drops again, it will not appear again.
In fact, another way of saying "firefly" generally refers to "He's bent throat firefly". It is a kind of ostracod luminous animal, which glows when it is stimulated by the outside world (such as the beating of waves) as long as it gathers in large quantities. ).