List of critically endangered fishes

As of July 2017, the International Union for Conservation of Nature (IUCN) listed 1,000 critically endangered fish species, including 87 which are tagged as possibly extinct.

Additionally 3191 fish species (21% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status.

As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN.

[4] This is a complete list of critically endangered fish species and subspecies evaluated by the IUCN.

There are 145 species, one subspecies, and one subpopulation in the order Cypriniformes assessed as critically endangered.

6 extinct in the wild fish species (0.04%) 455 critically endangered fish species (3.0%) 643 endangered fish species (4.2%) 1245 vulnerable fish species (8.2%) 548 near threatened fish species (3.6%) 9131 least concern fish species (60%) 3191 data deficient fish species (21%)
Critically endangered (CR) species face an extremely high risk of extinction in the wild.