Morphometric differentiation of bigeye scad Selar crumenophthalmus (Bloch, 1793) from South Konkan coast of Maharashtra by truss network analysis

Stock discrimination of bigeye scad, Selar crumenophthalmus along the south Konkan coasts of Maharashtra using truss morphometry was attempted based on the study of 120 individuals collected from Harnai, Ratnagiri and Malvan coasts of the region.A nine point truss network with eighteen truss variables was studied. Truss morphometry showed significant differences in CC (2-3), DD (2-8), EE (2-9), FF (3-4), KK (4-6), LL (4-7) and NN (5-6) distances from the three sampling locations in 18 truss morphometricmeasurements. Truss morphometry being able to cover the entire body in uniform fashion proved to be a robust technique in discriminating the population of S. crumenophthalmus in three distinct stocks within south Konkan region. Keywords: Bigeye scad, Carangidae, Stock differentiation, Truss morphometry