ðə stˈɜːlɪt ɐsˈaɪpənsɚ ɹˈuːθɛnəs ɪz ɐ ɹˈɛlətˌɪvli smˈɔːl spˈiːsiːz ʌv stˈɜːdʒən fɹʌm juːɹˈeɪʒə nˈeɪɾɪv tə lˈɑːɹdʒ ɹˈɪvɚz ðæt flˈoʊ ˌɪntʊ ðə blˈæk sˈiː, ˈæzɑːv sˈiː, ænd kˈæspiən sˈiː, æz wˈɛl æz ɹˈɪvɚz ɪn saɪbˈiəɹɪə æz fˈɑːɹ ˈiːst æz jˈɛnaɪsˌaɪ.
The sterlet (Acipenser ruthenus) is a relatively small species of sturgeon from Eurasia native to large rivers that flow into the Black Sea, Azov Sea, and Caspian Sea, as well as rivers in Siberia as far east as Yenisei.