Analysis of Morphometric and Gene of Bombay-duck (Harpodon nehereus) in Tarakan Waters

Abstract

Bombay-duck (Harpadon nehereus) was one of economically valuable fish at Tarakan waters. This fish was caught by trawl and jermal. In this study, samples were taken from two fishing area, that were Juata and Amal. 20 characters morphometric was measure carried out on 100 samples from each area. Molecular identification and phylogeny of this species used Cytochrome C Oxidase Subunit I (COI) gene. The phylogenetic tree was constructed used MEGA 5.0 program. There were 5 significantly different characters between sample from Juata and Amal, that were body weight (P = 0.00), distance between pelvic and anal fins (P = 0.001), caudal fin height (P = 0.009), pelvic fin base length (P = 0.015), and dorsal fin base length (P = 0.031). Molecular identification showed that samples were the same species. The genetic distance between samples from Juata and Amal was 0 (zero).