Bioluminescence may be defined as the production and emission of light by a living organism. This natural phenomenon occurs in marine vertebrates and invertebrates, some fungi, bacteria, terrestrial arthropods such as fireflies and marine plants.

Why does Blue Tide Occur?

Blue Tides occur due to the laminating of marine life. Phytoplanktons emit blue light due to chemical reactions in proteins. Waves are believed to disturb the organisms which make them release blue light.

Blue Tide in Mumbai

  • Recently, a tide producing fluorescent blue light was spotted on Juhu beach in Mumbai and Devgad beach in Sindhudurg along Maharashtra’s coastline.
  • Since the year 2016, Bioluminescence has been an annual phenomenon occurring along the west coast, from November to December.
  • The phenomenon sees the production of light emitted phytoplanktons that are also known as dinoflagellates.
  • As per Scientists, the light is produced through a series of chemical reactions due to the luciferase protein.
  • Another main factor for its occurrence could be eutrophication, the reduction of oxygen in the water, which in turn makes the phytoplanktons dominant and makes them emit light.
  • Bioluminescence is observed in many beaches of the world in Vietnam, the USA, Indonesia, Australia, Maldives, and others along with India.

Are Blue Tides harmful?

As per reports, smaller blue tides are harmless but larger ones can affect deep-sea fishing. This is an indication of climate change.

Red Tide

Similar to Blue Tides, another phenomenon called Red Tide occurs wherein red light is emitted.  It takes place when colonies of algae, living in sea and freshwater grow out of control while producing harmful toxic effects. However, it is a rare occurring phenomenon.

Written by IAS POINT

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