As of September 2016, the International Union for Conservation of Nature (IUCN) lists 9131 least concern fish species. 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.
Lobe-finned fishes
South American lungfish (Lepidosiren paradoxa)
Gilled African lungfish (Protopterus amphibius)
West African lungfish (Protopterus annectens)
Spotted African lungfish (Protopterus dolloi)
Cartilaginous fishes
Chondrichthyes includes sharks, rays, skates, and sawfish. There are 313 species and two subpopulations of cartilaginous fish assessed as least concern.
Rays and skates
There are 148 species in the order Rajiformes assessed as least concern.
Guitarfish species
Eastern shovelnose ray (Aptychotrema rostrata)
Southern shovelnose ray (Aptychotrema vincentiana)
Bluntnose guitarfish (Rhinobatos blochii)
Goldeneye shovelnose ray (Rhinobatos sainsburyi)
Southern fiddler ray (Trygonorrhina dumerilii)
Eastern fiddler ray (Trygonorrhina fasciata)
Whiptail stingrays
Short-tail stingray (Bathytoshia brevicaudata)
Broad stingray (Bathytoshia lata)
Atlantic stingray (Hypanus sabinus)
Black-spotted whipray (Maculabatis astra)
Arabian banded whipray (Maculabatis randalli)
Freshwater whipray (Urogymnus dalyensis)
Brown whipray (Maculabatis toshi)
Painted maskray (Neotrygon leylandi)
Peppered maskray (Neotrygon picta)
Pelagic stingray (Pteroplatytrygon violacea)
Narcinids
Blind torpedo (Benthobatis marcida)
Dark blind ray (Benthobatis moresbyi)
Ocellated electric ray (Diplobatis ommata)
Apron ray (Discopyge tschudii)
Lesser electric ray (Narcine bancroftii)
Brown numbfish (Narcine brunnea)
Western numbfish (Narcinops lasti)
Eastern numbfish (Narcinops nelsoni)
Ornate numbfish (Narcinops ornata)
Tasmanian numbfish (Narcinops tasmaniensis)
Banded numbfish (Narcinops westraliensis)
Hardnose skates
Broad skate (Amblyraja badia)
Southern thorny skate (Amblyraja doellojuradoi)
Arctic skate (Amblyraja hyperborea)
Jensen's skate (Amblyraja jenseni)
Bigmouth skate (Amblyraja robertsi)
Big skate (Beringraja binoculata)
Lempriere's skate (Dentiraja lemprieri)
Brown bight skate (Dipturus acrobelus)
Pale tropical skate (Dipturus apricus)
Graham's skate (Dipturus grahami)
Heald's skate (Dentiraja healdi)
New Zealand smooth skate (Dipturus innominatus)
Ocellate skate (Dentiraja oculus)
Argus skate (Dipturus polyommata)
Slimeskate (Dipturus pullopunctatus)
Weng's skate (Dipturus wengi)
Atlantic finless skate (Gurgesiella atlantica)
Dusky finless skate (Gurgesiella furvescens)
Rosette skate (Leucoraja garmani)
Cuckoo skate (Leucoraja naevus)
Sawback skate (Leucoraja pristispina)
Yellospotted skate (Leucoraja wallacei)
Krefft's skate (Malacoraja kreffti)
Soft skate (Malacoraja spinacidermis)
Blue pygmy skate (Neoraja caerulea)
Iberian pygmy skate (Neoraja iberica)
Arafura skate (Okamejei arafurensis)
Thintail skate (Okamejei leptoura)
Clearnose skate (Raja eglanteria)
California skate (Raja inornata)
Brown skate (Raja miraletus)
Spotted skate (Raja montagui)
Speckled ray (Raja polystigma)
Longnose skate (Beringraja rhina)
Pacific starry skate (Raja stellulata)
Bigthorn skate (Rajella barnardi)
Deepwater ray (Rajella bathyphila)
Bigelow's skate (Rajella bigelowi)
Challenger skate (Rajella challengeri)
Ghost skate (Rajella dissimilis)
Sooty skate (Rajella fuliginea)
Round ray (Rajella fyllae)
Mid-atlantic skate (Rajella kukujevi)
Leopard skate (Rajella leopardus)
Sailray (Rajella lintea)
Blackish skate (Rajella nigerrima)
Purplebelly skate (Rajella purpuriventralis)
Smoothback skate (Rajella ravidula)
Ocellate skate (Rostroraja ackleyi)
Bahama skate (Rostroraja bahamensis)
Clearnose skate (Rostroraja eglanteria)
Roundel skate (Rostroraja texana)
New Zealand rough skate (Zearaja nasutus)
Urolophids
Western shovelnose stingaree (Trygonoptera mucosa)
Striped stingaree (Trygonoptera ovalis)
Masked stingaree (Trygonoptera personata)
Common stingaree (Trygonoptera testacea)
Circular stingaree (Urolophus circularis)
Crossback stingaree (Urolophus cruciatus)
Chesterfield Island stingaree (Urolophus deforgesi)
Wide stingaree (Urolophus expansus)
Patchwork stingaree (Urolophus flavomosaicus)
Spotted stingaree (Urolophus gigas)
Lobed stingaree (Urolophus lobatus)
Mitotic stingaree (Urolophus mitosis)
New Caledonian stingaree (Urolophus neocaledoniensis)
There are 47 silverside species assessed as least concern.
Atherinidae
Melanotaeniidae
Neotropical silversides
Other silverside species
Toothcarps
There are 206 species and two subspecies of toothcarp assessed as least concern.
Goodeids
Green goodea (Goodea atripinnis)
Lennon's ilyodon (Ilyodon lennoni)
Pupfish species
Aplocheilids
Rivulids
Nothobranchiids
Species
Subspecies
Aphyosemion cameronense halleri
Dusky panchax (Epiplatys chevalieri nigricans)
Poeciliids
Fundulids
Cypriniformes
Cypriniformes includes carps, minnows, loaches and relatives. There are 1231 species and three subspecies in the order Cypriniformes assessed as least concern.
Hillstream loaches
True loaches
Cyprinids
Species
Subspecies
Psilorhynchids
Suckers
Gyrinocheilids
Honey sucker (Gyrinocheilus aymonieri)
Spotted algae eater (Gyrinocheilus pennocki)
Vaillantellids
Vaillantella maassi
Gasterosteiformes
Includes sticklebacks and relatives.
Osmeriformes
Osmeriformes includes freshwater smelts and allies. There are 90 species in the order Osmeriformes assessed as least concern.
Galaxiids
Smelts
Alepocephalids
Argentinidae
Platytroctids
Deep-sea smelts
Barreleyes
Microstomatids
Other Osmeriformes species
Percopsiformes
Trout-perch and its allies
Catfishes
There are 707 catfish species assessed as least concern.
Ictalurids
Pangasiidae
Heptapterids
Astroblepids
Sisorids
Silurids
Trichomycterids
Loach catfishes
Claroteids
Airbreathing catfishes
Loricariids
Mochokids
Electric catfish species
Ariids
Bagrids
Schilbeids
Callichthyids
Doradids
Driftwood catfishes
Erethistids
Pseudopimelodids
Other catfish species
Gonorynchiformes
Includes milkfish, beaked salmon and allies.
Batrachoidiformes
Perciformes
There are 3878 species and 18 subspecies in the order Perciformes assessed as least concern.
Beloniformes
There are 74 species and seven subspecies in the order Beloniformes assessed as least concern.
Ricefishes
Halfbeaks
Needlefishes
Species
Subspecies
Flying fish
Species
Subspecies
California flying fish (Cheilopogon pinnatibarbatus californicus)
Scomberesocids
Atlantic saury (Scomberesox saurus)
Dwarf Atlantic saury (Scomberesox simulans)
Snakeheads
Northern snakehead (Channa argus)
Small snakehead (Channa asiatica)
Forest snakehead (Channa lucius)
Blotched snakehead (Channa maculata)
Black snakehead (Channa melasoma)
Giant snakehead (Channa micropeltes)
Spotted snakehead (Channa punctata)
Striped snakehead (Channa striata)
Synbranchiformes
There are 52 species in the order Synbranchiformes assessed as least concern.
Swamp eels
Mastacembelids
Gymnotiformes
Osteoglossiformes
There are 127 species in the order Osteoglossiformes assessed as least concern.
Mormyrids
Notopterids
Other Osteoglossiformes species
Gobiesociformes
Characiformes
There are 354 species in the order Characiformes assessed as least concern.
Bryconids
Curimatids
Alestids
Lebiasinids
Distichodontids
Characids
Citharinids
Anostomids
Crenuchids
Other Characiformes species
Syngnathiformes
Syngnathiformes includes the pipefishes and seahorses. There are 102 species and one subspecies in the order Syngnathiformes assessed as least concern.