A Giant fish is declared extinct — how do scientists conclude that?

sfg-2026
ForumIAS LATEST
  1. 16 June | Failed Before Success: AIR 295 Reveals His UPSC Journey | Click Here to Watch →
  2. 17 June | How to Write High-Scoring Answers in Hindi Literature Optional | Click Here to Watch →
  3. 18 June | From Setback to Success: Bhavika Chopra's Rise to AIR 25 | Click Here to Watch →
  4. 19 June | The Rankforge Challenge (FRC/Tapasya): Truth About UPSC & Coaching by Ayush Sinha | Click Here to Watch →
  5. 20 June | 150+ Cleared UPSC Prelims from Naugaon, Alwar | The FRC Tapasya Success Story | Click Here to Watch →

News: Chinese researchers, based on the Red List criteria of the International Union for Conservation of Nature (IUCN), have concluded that Chinese Paddlefish are extinct.

Facts:

  • Chinese paddlefish, also known as the Chinese swordfish lived in Yangtze River in China. It dates back 200 million years.
  • The researchers estimate that it became functionally extinct by 1993, and extinct sometime between 2005 and 2010.

Additional Information

Categories of Extinction by IUCN:

1.       Extinct in the wild: a species survives only in a captive environment

2.       Locally extinct: species has ceased to exist in a particular area but may exist in other areas.

3.       Functionally extinct: the species continues to exist but it has too few members to enable it to reproduce meaningfully enough to ensure survival.

4.       Globally extinct: a species has no surviving member anywhere.

Print Friendly and PDF
Blog
Academy
Community