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hump

HUMP-BACKED MAHSEER

What’s in news?

  • The hump-backed Mahseer, found in the waters of the Cauvery, has been added to the IUCN Red List with Critically Endangered status.

Hump-Backed Mahseer :

  • The hump-backed mahseer is a large freshwater fish found only in the Cauvery river basin including Kerala’s Pambar, Kabini and Bhavani rivers.
  • This fish also called as “THE TIGER OF THE WATER”.
  • Five other species have also made it to threatened categories:
    • 2 Wild Orchids.
    • 2 Wild Coffee species found only in a few localities in the Western Ghats.
    • The Arabian Scad (a marine fish).

 About IUCN red list of threatened species:

  • The IUCN Red List of Threatened Species is the world’s most comprehensive inventory of the global conservation status of plant and animal species.
  • It uses a set of quantitative criteria to evaluate the extinction risk of thousands of species. These criteria are relevant to most species and all regions of the world. With its strong scientific base, The IUCN Red List is recognized as the most authoritative guide to the status of biological diversity.
  • The IUCN Red List Categories define the extinction risk of species assessed. Nine categories extend from NE (Not Evaluated) to EX (Extinct). Critically Endangered (CR), Endangered (EN) and Vulnerable (VU), Threatened with extinction are the various categories.
  • The IUCN system uses a set of five quantitative criteria to assess the extinction risk of a given species. In general, these criteria consider:
  1. The rate of population decline.
  2. The geographic range.
  3. Whether the species already possesses a small population size.
  4. Whether the species is very small or lives in a restricted area.
  5. Whether the results of a quantitative analysis indicate a high probability of extinction in the wild.

Significance:

  • The IUCN Red List brings into focus the on-going decline of Earth’s biodiversity and the influence humans have on life on the planet. It provides a globally accepted standard with which to measure the conservation status of species over time.
  • Scientists can analyse the percentage of species in a given category and how these percentages change over time; they can also analyse the threats and conservation measures that underpin the observed trends.

https://www.iasipstnpsc.in/iucn-threat-categories/

https://www.thehindu.com/news/national/kerala/after-150-years-a-fish-gets-a-scientific-name/article24444750.ece

https://www.thehindu.com/sci-tech/energy-and-environment/the-hump-backed-mahseer-critically-endangered/article26653559.ece

 

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