Length-weight and length-length relations for 14 fish species from the central Mexican pacific coast

Length-weight (LWR) and standard length-total length (L-L) relations are presented for 14 fish species caught in four estuaries from the south-eastern coast of Michoacán, México (Central Pacific): Lile nigrofasciata Castro-Aguirre, Ruiz-Campos et Balart, 2002; Pliosteostoma lutipinnis (Jordan et Gilbert, 1882); Agonostomus monticola (Bancroft, 1834); Mugil curema Valenciennes, 1836; Poecilia butleri Jordan, 1889; Centropomus nigrescens Günther, 1864; Lutjanus novemfasciatus Gill, 1862; Eucinostomus currani Zahuranec, 1980; Dormitator latifrons (Richardson, 1844); Eleotris picta Kner, 1863; Gobiomorus maculatus (Günther, 1859); Awaous banana (Valenciennes, 1837); Gobionellus microdon (Gilbert, 1892); Trinectes fonsecensis (Günther, 1862). Values of b ranged from 2.912 to 3.432. The results revealed that length-weight relations for all species were highly correlated; likewise, length-length relations for all fishes also showed high correlation. This study presents for the first time, length-weight parameters for two species and length-length relations for six species.