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Exotic species - Shanmugam IAS academy in coimbatore
Exotic species

BANNED EXOTIC SPECIES

What’s in news?

A special drive was launched to destroy the cultivation centres of the exotic Thai Mangur fish.

Key data’s:

  • Launched in: The drive to destroy the cultivation of the exotic species was launched by Maharashtra.
  • The decision is the outcome of a meeting held between fish traders and officials of the Maharashtra fisheries department.
  • Reason for the ban: Following are the reasons to ban the fish;
    • The fish is cultivating in the unhygienic conditions – when the people consume the fish or the water where it grows, they fell sick.
    • It is said to be carcinogenic to consume and it affects the bio-diversity.
    • It preys on indigenous varieties of fish – which may lead in decline of indigenous population.
  • Previous ban: The sale and cultivation of the fish was banned previously by the National Green Tribunal in 2000 and again it was banned in January 2019 – but it was not implemented effectively.
  • So far: The state government of Maharashtra has destroyed stocks of 57 tonnes in total in various places across the state.

About Thai Mangur:

  • Other names: The exotic species Thai mangur was also known as African Mangur or foreign Mangur – they called so because of its appearances is somewhat like fresh water Mangur.
  • IUCN Status: Least Concern.
  • Habitat: The fish normally lives on in slow-moving and often stagnant waters in ponds, swamps, streams and rivers, flooded rice paddies or temporary pools which may dry up. 
  • With the recent study, the Mangur fish is responsible for 70% decline in native fish species of the country.
  • Prey on: The fish prey on all form of life found in the inland waters except crocodiles.
  • Length: They can grow up to 3 to 5 feet.
  • They cultivate in unhygienic conditions by feeding the rotten meat with spinach which pollutes the water body.
  • Introduced in India: The fish was introduced in India by 1990’s and it was promoted by the government officials due to few advantages;
    • They can cultivate in inland waterways
    • They can yield high income with low investments.
  • It is popular because, it is an omnivorous diet, burrowing capabilities, ability to survive on land and ability to hide in vegetation make the species easy and economical for farming.

Links to note:

https://www.iasipstnpsc.in/wild-animals/

https://mumbaimirror.indiatimes.com/mumbai/other/maharashtra-government-launches-special-drive-to-destroy-breeding-centres-of-thai-mangur-fish/articleshow/74244881.cms

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