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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
Nothobranchius Matanduensis
Nothobranchius matanduensis
Nothobranchiidae
Vulnerable
Nothobranchius Niassa
Nothobranchius niassa
Nothobranchiidae
Vulnerable
Nothobranchius Nikiforovi
Nothobranchius nikiforovi
Nothobranchiidae
Vulnerable
Nothobranchius Nubaensis
Nothobranchius nubaensis
Nothobranchiidae
Vulnerable
Nothobranchius Rosenstocki
Nothobranchius rosenstocki
Nothobranchiidae
Vulnerable
Nothobranchius Rungwaensis
Nothobranchius rungwaensis
Nothobranchiidae
Vulnerable
Nothobranchius Ruudwildekampi
Nothobranchius ruudwildekampi
Nothobranchiidae
Vulnerable
Nothobranchius Seegersi
Nothobranchius seegersi
Nothobranchiidae
Vulnerable
Nothobranchius Serengetiensis
Nothobranchius serengetiensis
Nothobranchiidae
Vulnerable
Nothobranchius Skeltoni
Nothobranchius skeltoni
Nothobranchiidae
Vulnerable
Nothobranchius Streltsovi
Nothobranchius streltsovi
Nothobranchiidae
Vulnerable
Nothobranchius Torgashevi
Nothobranchius torgashevi
Nothobranchiidae
Vulnerable
Nothobranchius Usanguensis
Nothobranchius usanguensis
Nothobranchiidae
Vulnerable
Nothobranchius Venustus
Nothobranchius venustus
Nothobranchiidae
Vulnerable
Notoglanidium Maculatum
Notoglanidium maculatum
Claroteidae
Vulnerable
Notoglanidium Pallidum
Notoglanidium pallidum
Claroteidae
Vulnerable
Notoglanidium Thomasi
Notoglanidium thomasi
Claroteidae
Vulnerable
Odontesthes Brevianalis
Odontesthes brevianalis
Atherinopsidae
Vulnerable
Odontesthes Hatcheri
Odontesthes hatcheri
Atherinopsidae
Vulnerable
Odontesthes Mauleanum
Odontesthes mauleanum
Atherinopsidae
Vulnerable
Odontostilbe Mitoptera
Odontostilbe mitoptera
Characidae
Vulnerable
Ogilby's rainbowfish
Melanotaenia ogilbyi
Melanotaeniidae
Vulnerable
Ohrid minnow
Pelasgus minutus
Cyprinidae
Vulnerable
Olga cory
Corydoras simulatus
Callichthyidae
Vulnerable
Ompok Supernus
Ompok supernus
Siluridae
Vulnerable
Opata sucker
Catostomus wigginsi
Catostomidae
Vulnerable
Opsarius Chatricensis
Opsarius chatricensis
Cyprinidae
Vulnerable
Opsarius Dimorphicus
Opsarius dimorphicus
Cyprinidae
Vulnerable
Opsarius Dogarsinghi
Opsarius dogarsinghi
Cyprinidae
Vulnerable
Opsarius Ngawa
Opsarius ngawa
Cyprinidae
Vulnerable
Oreochromis Salinicola
Oreochromis salinicola
Cichlidae
Vulnerable
Orestias Ascotanensis
Orestias ascotanensis
Cyprinodontidae
Vulnerable
Orestias Ctenolepis
Orestias ctenolepis
Cyprinodontidae
Vulnerable
Orestias Imarpe
Orestias imarpe
Cyprinodontidae
Vulnerable
Orestias Multiporis
Orestias multiporis
Cyprinodontidae
Vulnerable
Orestias Pentlandii
Orestias pentlandii
Cyprinodontidae
Vulnerable
Orestias Puni
Orestias puni
Cyprinodontidae
Vulnerable
Orestias Richersoni
Orestias richersoni
Cyprinodontidae
Vulnerable
Orestias Silustani
Orestias silustani
Cyprinodontidae
Vulnerable
Ornate rainbowfish
Rhadinocentrus ornatus
Melanotaeniidae
Vulnerable
Orontes bleak
Alburnus orontis
Cyprinidae
Vulnerable
Orthochromis Luichensis
Orthochromis luichensis
Cichlidae
Vulnerable
Orthochromis Malagaraziensis
Orthochromis malagaraziensis
Cichlidae
Vulnerable
Orthochromis Rugufuensis
Orthochromis rugufuensis
Cichlidae
Vulnerable
Oryzias Hadiatyae
Oryzias hadiatyae
Adrianichthyidae
Vulnerable
Osteogaster Hephaestus
Osteogaster hephaestus
Vulnerable
Otopharynx Pachycheilus
Otopharynx pachycheilus
Cichlidae
Vulnerable
Oxyeleotris Caeca
Oxyeleotris caeca
Eleotridae
Vulnerable