KELIMPAHAN DAN KEANEKARAGAMAN MAKROAVERTEBRATA AIR PADA KERAPATAN VEGETASI RIPARIAN YANG BERBEDA DI SUNGAI AIMASI KABUPATEN MANOKWARISimon P.O. Leatemia1*, Erick C. Wanggai2, Selfanie Talakua11 Program Studi Manajemen Sumberdaya Perairan – Universitas Papua 2 Mahasiswa Program Studi Manajemen Sumberdaya Perairan – Universitas PapuaReceived: 08 Juni 2016 - Accepted: 23 Juli 2016 ABSTRACT Riparian vegetation on the edge of the stream is one of important factors affecting the availability of water macroinvertebrates in the river basin. This study was aimed to determine the effect of different riparian vegetation density on the abundance and diversity of water macroinvertebrates in the Aimasi stream. Four observation stations were determined by different riparian vegetation density within the Aimasi stream. Simple regression analysis showed a significant correlation between the density of riparian vegetation with the density and diversity of water macroinvertebrates, where higher density ofriparian vegetation were followed by higher abundance and diversity of water macroinvertebrates. The results showed a positive correlation between the density of riparian vegetation with the density and diversity water macroinvertebrates,therefore a seriously attention is needed to address land clearing activity that cause changes to riparian vegetationon in Aimasi stream. Key words: water macoinvertebrates, riparian vegetation, Aimasi strea
