Keanekaragaman Makrozoobentos di Sungai Bah Binoman Desa Marjandi Embong Kecamatan Panombeian Panei Kabupaten Simalungun

Abstract

Macrozoobentos Diversity in Bah Binoman River, Marjandi Embong Village, District of Panombeian Panei, Simalungun Regency has been observed in April 2016. Determination of the research station using “Purposive Sampling Methode” at three different locations based on activities in the study area. The result of the study recognized 19 genera of macrozoobentos belonging to 3 phyla, 4 classes, 11 ordos, and 17 families. Genera Chimarra had the highest density with 46,30 ind/m2 found at station 1. The highest diversity was found at station 2 with 2,39 (fair diversity). The Family Biotic Index (FBI) value of station 1 is 3,190 (excellent), station 2 is 5 (good), and station 3 is 5.974 (fairly poor). Oxygen saturation and temperature are evidently correlated to the macrozoobentos diversity.