All Fish

Tyttocharax metae

Not Evaluated freshwater

Tyttocharax tambopatensis

Not Evaluated freshwater

Uacari

Pseudoloricaria laeviuscula

Not Evaluated freshwater

Uaracu piranga

Leporinus brunneus

Not Evaluated freshwater

Ubagochi

Parabembras curta

Not Evaluated saltwater

Ubarana

Anodus orinocensis

Not Evaluated freshwater

Uba-uo

Aspasma minima

Not Evaluated saltwater

Ucamara catfish

Lepthoplosternum ucamara

Not Evaluated freshwater

Ucayali catfish

Lepthoplosternum altamazonicum

Not Evaluated freshwater

Uchiwahaze

Mangarinus waterousi

Not Evaluated both

Uegitglanis zammaranoi

Not Evaluated freshwater

Uferbuntbarsch

Aulonocranus dewindti

Not Evaluated freshwater

Uganda-Großmaul-Cichlide

Haplochromis orthostoma

Not Evaluated freshwater

Uganda nothobranch

Nothobranchius ugandensis

Not Evaluated freshwater

Uiruton-notosenia

Patagonotothen wiltoni

Not Evaluated saltwater

Ukeguchi-iwashi

Bajacalifornia erimoensis

Not Evaluated saltwater

Ukeguchikawamuki

Atrophacanthus japonicus

Not Evaluated saltwater

Ukeguchi-mebaru

Sebastes scythropus

Not Evaluated saltwater

Ukeguchi-zaragarei

Chascanopsetta prognatha

Not Evaluated saltwater

Ukekuchi-kôrikajika

Icelus mandibularis

Not Evaluated saltwater

Ukekuchi-ugui

Pseudaspius nakamurai

Not Evaluated freshwater

Ukkrit's pygmygoby

Trimma ukkriti

Not Evaluated saltwater

Ukrainian brook lamprey

Eudontomyzon mariae

Not Evaluated freshwater

Ukrainian gudgeon

Gobio sarmaticus

Not Evaluated freshwater

Umatilla dace

Rhinichthys umatilla

Not Evaluated freshwater

Umbrina imberbis

Not Evaluated saltwater

Umbrina milliae

Not Evaluated saltwater

Umbrina reedi

Not Evaluated saltwater

uMkhomazi mountain catfish

Amphilius zuluorum

Not Evaluated freshwater

Umpqua chub

Oregonichthys kalawatseti

Not Evaluated freshwater

Umpqua dace

Rhinichthys evermanni

Not Evaluated freshwater

Umpqua pikeminnow

Ptychocheilus umpquae

Not Evaluated freshwater

Um qaren

Pervagor randalli

Not Evaluated saltwater

Um shiffa

Brevimyrus niger

Not Evaluated freshwater

Uncinate sculpin

Icelus uncinalis

Not Evaluated saltwater

Uncisudis advena

Not Evaluated saltwater