Study morphology of Milkfish Chanos chanos (Forsskal, 1977) population in the southeastern sea region of Vietnam

Abstract

To describe the morphological characteristics, compare and group the phenotypic of the Milkfish population in the Southeastern sea region of Vietnam, the authors collected 200 samples of Milkfish with standard length SL≥200 mm, in 6 coastal provinces from Binh Dinh to Ba Ria - Vung Tau, then analysed 10 quality traits, 25 quantitative traits and biometric rate. Comparisons were based on the method of tabulation and scatter graphs. The values ​​k=0.02 and 0.0211, suggested that the Milkfish population in the southeastern sea region of Vietnam has the same origin as the Milkfish population in the Philippines. The SL/BD result is 3.89( higher than the standard ratio of 3.5) showing that the fish's body has a typical elongated structure for the "Normal type" group. Research results of external morphological characteristics confirmed that Milkfish Chanos chanos (Forsskall, 1977) population belongs to the "Normal type" group, which is currently the most popular cultured species.