Length–weight and length–length relations of the seven endemic Alburnus species (Actinopterygii: Cypriniformes: Cyprinidae) in Iran

The length-weight (LWR) and length-length (LLR) relations were estimated for the first time for the seven endemic species of the genus Alburnus Rafinesque, 1820 inhabiting Iranian rivers namely Alburnus atropatenae Berg, 1925; Alburnus caeruleus Heckel, 1843; Alburnus chalcoides (Guldenstadt, 1772); Alburnus filippii Kessler, 1877; Alburnus hohenackeri Kessler, 1877; Alburnus mossulensis Heckel, 1843; and Alburnus zagrosensis Coad, 2009. A total of 178 specimens were caught by electrofishing during 2010-2012. The b values of the LWR (W = aL(b)) ranged from 2.672 for A. chalcoides to 3.313 for A. atropatenae. The r(2) values ranged from 0.85 to 0.997 and the intercepts were between 0.0041 and 0.0190. All LLRs were highly significant (r(2) > 0.96).