Aspek Ekobiologi Ikan Bilih (Mystacoleucus padangesis) di Perairan Danau Toba Desa Pangururan Kabupaten Samosir

Abstract

The Aspects Ecobiology Of ikan bilih (Mystacoleucus padangensis) in The Water of Lake Toba has been researched from July, 2014 to September, 2014. The purpose of this research was to determine the aspects ekobiologi of ikan bilih such as density, long-weight relationship, TKG, diameter’s egg and fecundity of mystacoleucus padangensis. Sampling was carried out at three stations. Result of research showed the long-weight relationship is negative allometric. The fish density obtained more in the afternoon than the morning. From the observation of gonads mature of fish bilih obtained average fecundity 7.000 to 25.000 eggs with diameters ranging up 539 μm to 630 μm.