Stunning Blue Light Appears On Chennai Beach, Leaves Visitors Puzzled

The Logical Indian Crew

August 21st, 2019 / 9:45 AM

Blue Glow Chennai Beach

Image Credit: India Today

A magical blue glow on the beach along the East Coast Road in Chennai became a treat to the eyes for visitors on Sunday, August 18. The dazzling sparkles on the sea along the coast from Kovalam to Thiruvanmiyur took visitors by surprise. The internet soon became abuzz with videos and pictures of the stunning blue glow.


What Is The Blue Glow?

This phenomenon is commonly known as sea tinkle. The blue glow is known as bioluminescence and is a phenomenon caused by Noctiluca Scintillans, according to marine experts. Noctiluca Scintillans are a type of phytoplankton that converts their chemical energy into light energy when it is washed ashore. A chemical reaction in the presence of oxygen involving an enzyme called “luciferase” produces the light. 

Bioluminescence is found in many marine organisms such as bacteria, algae, jellyfish, worms, crustaceans, sea stars, fish and sharks, and is similar to the sight of fireflies. Dazzling as it may appear to the eyes, it an indicator of climate change, and definitely not good news for marine life. According to experts, it might result in disrupting an eco system’s long-term health.

According to Pooja Kumar, Activist & Researcher at the Coastal Resource Centre, due to the release of ammonia, these blooms have been linked to the massive fish kill. In some places, they have been said to be responsible for the decline in the fish count of the sea.

A sign of a possibly unhealthy ocean, bioluminescence usually blooms in areas where there is oxygen deficit. These areas also tend to have potentially high levels of nitrogen, phosphorus and others, which may adversely affect the larger marine food web.

Annually, since the early 2000s, such algal blooms have been reported in the Northern Arabian Sea. Goa, Mumbai and the backwaters of Kerala have also witnessed the phenomenon. Its function, however, is not fully understood. Studies are being carried to understand if it is a predator defence mechanism.


Also Read: The 25 Million-Year-Old Great Barrier Reef Is Not Dead Yet, But It Is At The Verge Of Dying


Contributors

Written by : Sumanti Sen

Edited by : Shweta Kothari

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