dʒˌɛɡhɑːɹkˈuːni ɪz ɐ mˈaɪɡɹətˌoːɹi fˈɔːɹm ðæt nˈætʃɚɹəli bɹˈiːdz ɛksklˈuːsɪvli ɪn ɹˈɪvɚz; ɪɾ ˈɔːlsoʊ fˈiːdz ˌɔn plˈæŋktən ɪn ɐdˈɪʃən tə bˈɛnθoʊz.
Gegharkuni is a migratory form that naturally breeds exclusively in rivers; it also feeds on plankton in addition to benthos.