Komunitas Makrozoobentos di Sungai Percut Kecamatan Percut Sei Tuan Kabupaten Deli Serdang Sumatera Utara

Abstract

Percut river is one of the rivers that flow in Deli Serdang which empties into Malaka Straits with an area 514,20 km2. The purpose of this research was to determine the macrozoobentos community and correlation between chemical physics with macroozobentos communities in the Percut River Deli Serdang Regency. This research was conducted in July – Agust 2014, by using purposive random sampling method on 4 stations with 4 times sampling time interval. Physical and chemical parameters were observed as temperature, flow rate, turbidity, TSS, Substrate, pH, DO, BOD5, TOM. Macrozoobentos were found in the Percut River of Percut Sei Tuan District consists of 12 genera that Branchiura, Tubifex, Penaeus, Scylla, Anadara, Melanoides Thiara, Elimia, Pleurocera, Filopaludina, Nerita dan Pila. The highest population density is at the first station of 78.2 ind/m2 and the lowest density at the third station of 26,6 ind/m2. The highest diversity index values found in station IV was 1.824, while the lowest value found in the first station of 1,049.