Length-weight and length-length relationships of Oxynoemacheilus frenatus (Heckel, 1843) and Petroleuciscus esfahani Coad & Bogutskaya, 2010 from the Cheshmeh-Langan river, Iran

The study presents length‐weight relationships (LWR s) and length‐lenght relationships (LLR s) for two freshwater fish species from the Cheshmeh‐Langan River (Iran; 32°50′N, 50°04′E), a part of the Tigris drainage basin. Fish were sampled by electrofishing (Samus 725M) in August and September 2017. The LWR s and LLR s obtained showed a high level of correlation (r 2 > .98). https://onlinelibrary.wiley.com/doi/abs/10.1111/jai.13607