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List of least concern fishes

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11 extinct in the wild fish species (0.04%)906 critically endangered fish species (3.1%)1533 endangered fish species (5.2%)1740 vulnerable fish species (5.9%)1042 near threatened fish species (3.65)18621 least concern fish species (63.2%)5492 data deficient fish species (18.7%)
Fish species (IUCN, 2025-2)
  • 29,447 extant species have been evaluated
  • 23,955 of those are fully assessed[a]
  • 19,663 are not threatened at present[b]
  • 4,292 to 9,784 are threatened[c]
  • 113 to 268 are extinct or extinct in the wild:
    • 102 extinct (EX) species[d]
    • 11 extinct in the wild (EW)
    • 147 possibly extinct [CR(PE)]
    • 8 possibly extinct in the wild [CR(PEW)]

  1. excludes data deficient evaluations.
  2. NT, LR/cd, LC.
  3. Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
  4. Chart omits extinct (EX) species

As of September 2016, the International Union for Conservation of Nature (IUCN) lists 9131 least concern fish species.[1] 60% of all evaluated fish species are listed as least concern. The IUCN also lists 37 fish subspecies as least concern.

Of the subpopulations of fishes evaluated by the IUCN, 44 species subpopulations have been assessed as least concern.

This is a complete list of least concern fish species and subspecies evaluated by the IUCN. Species and subspecies which have least concern subpopulations (or stocks) are indicated.

Chondrichthyes includes sharks, rays, skates, and sawfish. There are 313 species and two subpopulations of cartilaginous fish assessed as least concern.

Rays and skates

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There are 148 species in the order Rajiformes assessed as least concern.

Guitarfish species

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Whiptail stingrays

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Hardnose skates

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Softnose skates

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Other Rajiformes species

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Ground sharks

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There are 79 ground shark species assessed as least concern.

Requiem sharks

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Houndsharks

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Catsharks

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Other ground shark species

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Carpet sharks

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There are 34 species and two subpopulations in the order Squaliformes assessed as least concern.

Centrophorids

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Species

Subpopulations

Squalids

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Species

Somniosids

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Dalatiids

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Etmopterids

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Chimaeras

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There are 23 Chimaera species assessed as least concern.

Chimaerids

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Callorhinchids

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Rhinochimaerids

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Other cartilaginous fish species

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There are 8759 species, 34 subspecies, and one subpopulation of ray-finned fish assessed as least concern.

Species

Subpopulations

There are 47 silverside species assessed as least concern.

Other silverside species

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There are 206 species and two subspecies of toothcarp assessed as least concern.

Pupfish species

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Aplocheilids

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Rivulids

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Nothobranchiids

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Species

Subspecies

Poeciliids

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Fundulids

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Cypriniformes includes carps, minnows, loaches and relatives. There are 1231 species and three subspecies in the order Cypriniformes assessed as least concern.

Hillstream loaches

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True loaches

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Species

Subspecies

  • Niger barb (Barbus bynni occidentalis)
  • Barbus bynni waldroni
  • Systomus sarana subnasutus

Psilorhynchids

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Suckers

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Gyrinocheilids

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Vaillantellids

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Includes sticklebacks and relatives.

Osmeriformes includes freshwater smelts and allies. There are 90 species in the order Osmeriformes assessed as least concern.

Galaxiids

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Smelts

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Platytroctids

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Deep-sea smelts

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Barreleyes

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Microstomatids

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Other Osmeriformes species

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Trout-perch and its allies

There are 707 catfish species assessed as least concern.

Ictalurids

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Airbreathing catfishes

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Electric catfish species

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Ariids

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Bagrids

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Schilbeids

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Callichthyids

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Doradids

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Driftwood catfishes

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Erethistids

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Pseudopimelodids

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Other catfish species

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Includes milkfish, beaked salmon and allies.

There are 3878 species and 18 subspecies in the order Perciformes assessed as least concern.

There are 74 species and seven subspecies in the order Beloniformes assessed as least concern.

Ricefishes

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Halfbeaks

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Needlefishes

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Species

Subspecies

  • Baja California keeltail needlefish (Platybelone argalus pterura)
  • Tylosurus acus acus
  • Tylosurus acus imperialis
  • Tylosurus acus rafale
  • Tylosurus crocodilus crocodilus
  • Mexican needlefish (Tylosurus crocodilus fodiator)

Flying fish

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Species

Subspecies

Scomberesocids

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Snakeheads

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There are 52 species in the order Synbranchiformes assessed as least concern.

Swamp eels

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There are 127 species in the order Osteoglossiformes assessed as least concern.

Mormyrids

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Notopterids

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Other Osteoglossiformes species

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There are 354 species in the order Characiformes assessed as least concern.

Alestids

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Lebiasinids

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Distichodontids

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Characids

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Citharinids

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Anostomids

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Crenuchids

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Other Characiformes species

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Syngnathiformes includes the pipefishes and seahorses. There are 102 species and one subspecies in the order Syngnathiformes assessed as least concern.

Species

Subspecies

Centriscids

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Aulostomids

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Cornetfishes

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There are 143 species and one subspecies in the order Clupeiformes assessed as least concern.

Clupeids

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Species

Subspecies

Pristigasterids

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Anchovies

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Sundasalangids

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There are 175 species in the order Scorpaeniformes assessed as least concern.

Scorpaenids

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Triglids

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Other Scorpaeniformes species

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There are 123 species in the order Ophidiiformes assessed as least concern.

Brotulas

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Aphyonids

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Pearlfishes

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Parabrotulids

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There are 208 species and two subspecies in the order Tetraodontiformes assessed as least concern.

Molids

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Triggerfishes

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Tetraodontids

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Filefish species

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Ostraciids

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Porcupinefish

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Species

Subspecies

Aracanids

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Spikefishes

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There are 91 species in the order Gadiformes assessed as least concern.

Merlucciids

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Grenadiers species

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Morids

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Codlets

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Lotids

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Melanonids

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Phycids

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Mullets

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Bichirs

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There are 229 eel species assessed as least concern.

Chlopsids

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Ophichthids

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Congrids

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Moray eels

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Cutthroat eels

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Nettastomatids

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Heterenchelyids

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Other eel species

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Flatfishes

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There are 167 flatfish species assessed as least concern.

Pleuronectids

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Soleids

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Tonguefishes

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Paralichthyids

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American soles

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Bothids

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Citharids

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Scophthalmids

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Anglerfishes

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There are 87 anglerfish species assessed as least concern.

Goosefish species

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Frogfishes

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Oneirodids

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Ogcocephalids

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Whipnose anglers

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Leftvents

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Other anglerfish species

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Beryciformes

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There are 71 species in the order Beryciformes assessed as least concern.

Holocentrids

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Other Beryciformes species

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Stephanoberyciformes

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There are 81 species in the order Aulopiformes assessed as least concern.

Notosudids

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Barracudinas

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Ipnopids

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Pearleyes

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Synodontids

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Other Aulopiformes species

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Notacanthiformes

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There are 141 species in the order Stomiiformes assessed as least concern.

Sternoptychids

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Stomiids

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Gonostomatids

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Phosichthyids

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Cetomimiformes

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Myctophiformes

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There are 98 species in the order Myctophiformes assessed as least concern.

Lanternfishes

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Neoscopelids

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Lampriformes

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Stylephoriformes

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Other ray-finned fish species

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See also

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References

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  1. "IUCN Red List version 2016-2". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.