List of endangered fishes

Extinct, since 1500: 66 species
Extinct in the wild (EW): 6 species
Critically endangered (CR): 446 species
Endangered (EN): 614 species
Vulnerable (VU): 1,211 species
Near threatened (NT, LR/cd): 515 species
Least concern (LC): 8,655 species
Data deficient (DD): 2,949 species

Fish species (IUCN, 2015.4)

14,462 species have been evaluated
11,513 are fully assessed (excludes DD)
9170 are not threatened at present (LC, NT, LR/cd)
2271 are threatened (CR, EN, VU)
72 to 158 are extinct or extinct in the wild (EX, EW, CR(PE), CR(PEW))

Endangered (EN) species are considered to be facing a very high risk of extinction in the wild.

As of February 2016, the International Union for Conservation of Nature (IUCN) lists 614 endangered fish species.^[1] 4.2% of all evaluated fish species are listed as endangered. The IUCN also lists ten fish subspecies as endangered.

Of the subpopulations of fishes evaluated by the IUCN, 26 species subpopulations have been assessed as endangered.

For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of exintction". An even higher risk is faced by critically endangered species, which are listed separately (List of critically endangered fishes) even though they also meet the quantitative criteria for endangered species. There are 1060 fish species which are endangered or critically endangered.

Additionally 2949 fish species (20% 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.^[2] While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed."^[3]

This is a complete list of endangered fish species and subspecies as evaluated by the IUCN. Species or subspecies which have endangered subpopulations (or stocks) are indicated. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.

Cartilaginous fishes

There are 45 cartilaginous fish species assessed as endangered. There are also subpopulations of cartilaginous fish species assessed as endangered. Chondrichthyes includes sharks, rays, skates, and sawfish.

Rays and skates

Ground sharks

Species

Subpopulations

Sicklefin lemon shark (1 subpopulation)
Scalloped hammerhead (3 subpopulations)

Lampreys

Turkish brook lamprey

Ray-finned fishes

There are 566 ray-finned fish species and ten ray-finned fish subspecies assessed as endangered. There are also subpopulations of ray-finned fish species assessed as endangered.