Phenotypic Variation and Estimation of Genetic Distance in Bilih fish from Lake Singkarak and Lake Toba Using Morphological Analysis

Bilih fish (Mystacoleucus padangensis) are endemic fish having economical value and present in Singkarak Lake, West Sumatra. . Many efforts have been conducted to conserve the fish population such as releasing the fish produced from hatcheries to the lake and providing artificial reserves.One of them is introducing Bilih fish population to a new habitat, Toba Lake. There was a hypothesis that these fish had undergone some changes on their morphology compared to their original population in Singkarak Lake. The changes could occur in some morphological characters and also increase or decrease their growth. This study aims to compare the Phenotypic Variation and Estimation of Genetic Distance in Bilih fish from Lake Singkarak and Lake Toba using the morphology characters between Bilih fish introduced to Toba Lake with the original population in Singkarak Lake.