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Freshwater Fish Species
All freshwater fish species found in rivers, lakes, streams, and ponds worldwide. From tiny tetras to the giant arapaima — covering every continent.
18,067
Total Species
1,926
Endangered (EN+CR)
1,910
Edible Species
204
Families
Hypsolebias Guanambi
Hypsolebias guanambi
Rivulidae
Vulnerable
Hypsolebias Harmonicus
Hypsolebias harmonicus
Rivulidae
Vulnerable
Hypsolebias Longignatus
Hypsolebias longignatus
Rivulidae
Vulnerable
Hypsolebias Lopesi
Hypsolebias lopesi
Rivulidae
Vulnerable
Hypsolebias Mediopapillatus
Hypsolebias mediopapillatus
Rivulidae
Vulnerable
Iberian nase
Pseudochondrostoma polylepis
Cyprinidae
Vulnerable
Ichthyoelephas Longirostris
Ichthyoelephas longirostris
Prochilodontidae
Vulnerable
Iksookimia Yongdokensis
Iksookimia yongdokensis
Cobitidae
Vulnerable
Ili marinka
Schizothorax pseudoaksaiensis
Cyprinidae
Vulnerable
Incisilabeo Behri
Incisilabeo behri
Vulnerable
Edible
Indostomus Crocodilus
Indostomus crocodilus
Indostomidae
Vulnerable
Indus catfish
Mystus horai
Bagridae
Vulnerable
Inga mormyrid
Mormyrus iriodes
Mormyridae
Vulnerable
Inpa tube-snouted ghost knifefish
Sternarchorhynchus inpai
Apteronotidae
Vulnerable
Iran cave barb
Garra typhlops
Cyprinidae
Vulnerable
Irian Jaya rainbowfish
Melanotaenia irianjaya
Melanotaeniidae
Vulnerable
Irish pollan
Coregonus pollan
Salmonidae
Vulnerable
Edible
Issyk-Kul dace
Leuciscus bergi
Cyprinidae
Vulnerable
Italian Roach
Rutilus pigus
Cyprinidae
Vulnerable
Ituglanis Ramiroi
Ituglanis ramiroi
Trichomycteridae
Vulnerable
Ivindomyrus Opdenboschi
Ivindomyrus opdenboschi
Mormyridae
Vulnerable
Izmir chub
Petroleuciscus smyrnaeus
Cyprinidae
Vulnerable
Izmir nase
Chondrostoma holmwoodii
Cyprinidae
Vulnerable
Jaguar loach
Yasuhikotakia splendida
Botiidae
Vulnerable
Japigny Kirschbaum
Japigny kirschbaum
Vulnerable
Jeanpol's killi
Nimbapanchax jeanpoli
Nothobranchiidae
Vulnerable
Jellybean tetra
Lepidarchus adonis
Lepidarchidae
Vulnerable
Edible
Jianchuan stone loach
Triplophysa jianchuanensis
Nemacheilidae
Vulnerable
Jib-sail dwarf cichlid
Apistogramma velifera
Cichlidae
Vulnerable
Kachira Blue
Haplochromis commutabilis
Cichlidae
Vulnerable
Kalambo suckermouth
Chiloglanis kalambo
Mochokidae
Vulnerable
Kanglang fish
Anabarilius grahami
Cyprinidae
Vulnerable
Kapuas river sprat
Clupeichthys bleekeri
Ehiravidae
Vulnerable
Katavi mouthbrooder
Haplochromis katavi
Cichlidae
Vulnerable
Keletaona's Goby
Stenogobius keletaona
Gobiidae
Vulnerable
Kern brook lamprey
Occidentis hubbsi
Vulnerable
Kibiti Lampeye
Lacustricola lacustris
Poeciliidae
Vulnerable
Kichulchoia Brevifasciata
Kichulchoia brevifasciata
Cobitidae
Vulnerable
Killarney shad
Alosa killarnensis
Alosidae
Vulnerable
Edible
Kindia killi
Scriptaphyosemion cauveti
Nothobranchiidae
Vulnerable
King bagrid
Mystus bocourti
Bagridae
Vulnerable
Kiyi
Coregonus kiyi
Salmonidae
Vulnerable
Kneria Ruaha
Kneria ruaha
Kneriidae
Vulnerable
Kneria Uluguru
Kneria uluguru
Kneriidae
Vulnerable
Knodus Longus
Knodus longus
Stevardiidae
Vulnerable
Kokraimoro tube-snouted ghost knifefish
Sternarchorhynchus kokraimoro
Apteronotidae
Vulnerable
Kolus
Hypselobarbus kolus
Cyprinidae
Vulnerable
Korean stumpy bullhead
Coreobagrus brevicorpus
Bagridae
Vulnerable