Length-Weight Relationships of Five Elasmobranch Species from the Pacific Coast of Mexico

Özet

Length-weight relationships (LWR) were estimated for five elasmobranch species found in the Eastern Pacific:Heterodontus francisci (Girard, 1855), Urobatis halleri (Copper, 1863), Urobatis maculatus (Garman, 1913), Diplobatisommata (Jordan and Gilbert, 1890), and Rhinobatos productus (Ayres, 1854). Species were selected because none hadpreviously published data on LWR. The specimens were sampled along the Pacific west coast of Mexico, including the Gulfof California, between June 2009 and May 2013, using different fishing gear. The values of the exponent “b” of the LWRranged from 2.52 to 3.06. This study provides the first reference on the LWR for these elasmobranch species.