Length-weight relations of selected species of the family Gerreidae (Actinopterygii: Perciformes) from the Mexican coast

In this study, parameters of the length-weight relation (LWR) were estimated for fifteen species of Gerreidae (mojarras) caught from the Pacific- and Atlantic coast of Mexico, including the Gulf of California. The Pacific species were: Diapterus aureolus, Diapterus brevirostris, Eucinostomus currani, Eucinostomus dowii, Eucinostomus entomelas, Eucinostomus gracilis, Eugerres axillaris, Eugerres lineatus, and Gerres cinereus. The Atlantic species were: Diapterus auratus, Eucinostomus argenteus, Eucinostomus gula, Eucinostomus jonesi, Eucinostomus melanopterus, and Eugerres plumieri. The values of the exponent b of the length-weight relation ranged from 2.58 to 3.79. To the best of our knowledge, these are the first parameter estimates for nine species for the Mexican coast and for four on a worldwide scale.