Kebiasaan Makan Ikan Bilih (Mystaecoleucus padangensis) di Perairan Danau Toba Kecamatan Silahisabungan Kabupaten Dairi Provinsi Sumatera Utara

Abstract

Lake Toba is the largest lake in Indonesia, the Lake Toba area is surrounded by seven districts, namely North Tapanuli Regency, Simalungun Regency, Karo Regency, Dairi Regency, Samosir Regency, Toba Samosir Regency, and Humbang Hasundutan Regency. Bilih fish (Mystacoleucus padanensis) in Lake Toba is an introduced fish that is often found in rivers connected to Lake Toba. The aim of this research is to determine the food habits and types of food consumed by bilih fish found in Silahisabungan District, Dairi Regency, North Sumatra Province. The method used in this research is a purposive sampling method with samples taken once every month which was carried out in March-May 2023. The number of bilih fish samples obtained was 321 individuals. Bilih fish are omnivorous fish that tend to be herbivorous. Where bilih fish use phytoplankton as main food, litter as complementary food and zooplankton, insect body parts, moss as additional food.