Length-weight-relationship of two Ictalurid catfish species from an artisanal fishery in central México

Abstract

The length-weight relationship (LWR) for two Ictalurid catfish species was calculated by samples measured daily from March 2015 to April 2016. Specimens came from an artisanal fishery in a rural community along the High Balsas River in central Mexico. The (LWR) for both species, Ictalurus balsanus (Jordan & Snyder 1899) and Ictalurus punctatus (Rafinesque, 1818) were calculated using the equation W=aL b . The b value for l. balsanus was 2.7487 and for I. punctatus 2.7755. These results represent progress in the knowledge of the growth pattern for both species which will be useful for the implementation of fishery management strategies in the region.