Morphological character among five strains of giant gourami, Oshpronemus gouramy Lacepede, 1801 (Actinopterygii: Perciformes: Osphronemidae) using a truss morphometric system

Abstract

Research morphological characters among five strains of O. gouramy aim to know the morphometric characters and relation between strains. Morphometric measurements performed using a truss morphometric system. Sixteen morphometric measurements were made for each individual, data collection is correct by allometric equation for body size different and using Discriminant Function Analysis (DFA). Univariate analysis of variance (One Way Anova) was used to compare the variation among samples for truss measurements. And to know the main differentiating factor of morphological characters used Principal component analysis (PCA). The analysis showed value percentage difference morphological between Tambago strain with Palapah strain amounted 6.25% ie posterior end of dorsal fin to end of anal fin character and centroid close to each other, incorporated in the same plot. While the Merah strain and Krista strain forming a separate plot but intersect with differences in morphology amounted 37.50% ie origin of dorsal fin to origin of pelvic fin, Snout to origin of pelvic fin, snout to origin of dorsal fin, posterior end of dorsal fin to end of anal fin, origin of pelvic fin to posterior end of dorsal fin and End of anal fin to dorsal attachment of the caudal fin. The main differentiator between the strains that the character origin of dorsal fin to end of anal fin.