Sungai Besar Selangor Malaysia Blue Tears discovery 蓝眼泪

Kuala Selangor’s “Blue Tears” is a natural nighttime phenomenon caused by Dinoflagellates, an algae or marine plankton that emits blue-green light at night. “Blue tears” are normally found on shore but in Kuala Selangor, visitors get to catch the blue patches on a speedboat ride along the waters where the river meets the sea.
At night, water can have an appearance of sparkling light due to the bioluminescence of dinoflagellates. More than 18 genera of dinoflagellates are bioluminescent, and the majority of them emit a blue-green light. These species contain scintillons, individual cytoplasmic bodies (about 0.5 µm in diameter) distributed mainly in the cortical region of the cell, outpockets of the main cell vacuole. They contain dinoflagellate luciferase, the main enzyme involved in dinoflagellate bioluminescence, and luciferin, a chlorophyll-derived tetrapyrrole ring that acts as the substrate to the light-producing reaction. The luminescence occurs as a brief (0.1 sec) blue flash (max 476 nm) when stimulated, usually by mechanical disturbance. Therefore, when mechanically stimulated-by boat, swimming, or waves, for example-a blue sparkling light can be seen emanating from the sea surface.
Dinoflagellate bioluminescence is controlled by a circadian clock and only occurs at night. Luminescent and nonluminescent strains can occur in the same species. The number of scintillons is higher during night than during day, and breaks down during the end of the night, at the time of maximal bioluminescence.
The luciferin-luciferase reaction responsible for the bioluminescence is pH sensitive. When the pH drops, luciferase changes its shape, allowing luciferin, more specifically tetrapyrrole, to bind.Dinoflagellates can use bioluminescence as a defense mechanism. They can startle their predators by their flashing light or they can ward off potential predators by an indirect effect such as the "burglar alarm". The bioluminescence attracts attention to the dinoflagellate and its attacker, making the predator more vulnerable to predation from higher trophic levels.
Bioluminescent dinoflagellate ecosystem bays are among the rarest and most fragile, with the most famous ones being the Bioluminescent Bay in La Parguera, Lajas, Puerto Rico; Mosquito Bay in Vieques, Puerto Rico; and Las Cabezas de San Juan Reserva Natural Fajardo, Puerto Rico. Also, a bioluminescent lagoon is near Montego Bay, Jamaica, and bioluminescent harbors surround Castine, Maine. Within the United States, Central Florida is home to the Indian River Lagoon which is abundant with dinoflagellates in the summer and bioluminescent ctenophore in the winter
Sungai Besar (Jawi: سوڠاي بسر; Chinese: 大港) is the principal town of Sabak Bernam District, Selangor, Malaysia.
Sungai Besar's population is estimated to be around 23,000 of which 43% are within 20 to 55 years old. From that total, around 73 percent are Malays (Banjar, Jawa, and Kampar descents), Chinese (23%) and Indian (3.5%).
Majority of its people are working as farmers and fisherman, as well as working in coconut, padi planting, and palm oil plantations. The town becomes the centre of administration for Sabak Bernam district as many government offices and local authority centre are located there.
Fishing boats in Sungai Besar
The small village of Sungai Lias is within the town.
Tempat Menarik di Sungai Besar
Kebiasaannya, jika kita ingin melihat sawah padi di Selangor, Sekinchan antara tempat yang popular dengan keindahannya. Tahukah anda, terdapat banyak juga tempat menarik di Sungai Besar, iaitu jiran kepada Sekinchan?
Di sini kami akan kongsikan tempat menarik di Sungai Besar untuk anda terokai. Tak cukup sehari di sini. Kami sarankan agar anda meluangkan masa sekurang-kurangnya dua hari untuk percutian anda ke Sungai Besar.
“Blue Tears” is a natural nighttime phenomenon caused by Dinoflagellates, an algae or marine plankton that emits blue-green light at night.
“Blue tears” are normally found on shore, visitors get to catch the blue patches on a speedboat ride along the waters where the river meets the sea. The sighting of the “Blue Tears” here is one of the location in Selangor.
Best time to go
The best time to go in search of “Blue Tears” is during the new moon.
The 1st, 2nd and 3rd day of the month in the lunar calendar is the best time to visit due to high tide and darker sky, increasing chances of spotting them.
It is recommended to go from 9.00pm onwards, as bioluminescent displays are best viewed at least two hours after sunset. The “Blue tears” can only be captured with good photography equipment.
What to bring
Camera with night mode or higher ISO values to capture the bioluminescence in the darkness
Mosquito repellent
Bottled water
Umbrella
Visitors may use nets provided to stir up the water so that the bioluminescence is more visible, but are not allowed to bring the “Blue Tears” back.