“…Information on length–weight relationships of Iranian fish fauna is limited to some reports on commercially important species (Hosseini, : Naddafi et al., : Shokri et al., : Esmaeili, ; Esmaeili and Ebrahimi, : Abdoli et al., : Heydarnejad, 2009; Alavi‐Yeganeh et al., : Raeisi et al., ; Bibak et al., ). Two species of M. mastacembelus and G. silviae are native to the Cholvar River, Iran.…”