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ABSTRAK
KRISTIAN GULTOM.Keanekaragaman Makrozoobentos dan Kualitas Perairan
di Kawasan Mangrove Desa Lubuk Kertang Kabupaten Langkat Provinsi Sumatera Utara. MUHAMMAD BASYUNI dan IPANNA ENGGAR SUSETYA.
Penelitian ini bertujuan untuk mengetahui keanekaragaman makrozoobentos dan kualitas perairan didasarkan pada indeks keanekaragaman. Penelitian ini dilaksanakan pada bulan Februari-Maret 2017 di kawasan mangrove Desa Lubuk Kertang. Sampel Makrozoobentos diambil dari 3 stasiun.
Berdasarkan hasil penelitian, makrozoobentos yang ditemukan sebanyak 8 spesies yang digolongkan ke dalam 3 kelas yaitu Gastropoda, Bivalvia dan Malacostraca. Kelimpahan individu tertinggi terdapat pada Stasiun III (34 ind/m2) dan terendah terdapat pada Stasiun I (26 ind/m2). Indeks Keanekaragaman tertinggi terdapat pada Stasiun II (2,39) dan terendah pada Stasiun I (2,30). Berdasarkan indeks Shannon-Wienner kategori kualitas perairan di kawasan mangrove desa Lubuk Kertang yaitu tergolong tercemar sedang.
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ABSTRACT
KRISTIAN GULTOM. Diversity of Macrozoobenthos and Aquatic Quality in
Area Mangrove Village Lubuk Kertang District Langkat Province of North Sumatera. MUHAMMAD BASYUNI dan IPANNA ENGGAR SUSETYA.
This study aims to determine the diversity of macrozoobenthos and aquatic quality based on the index diversity. This research was conducted in February-March 2017 in area mangrove Village Lubuk Kertang. Samples of macrozoobenthos were taken from 3 stations.
Based on the results of research, macrozoobenthos found as many as 8 species classified in to 3 classes of Gastropoda, Bivalvia and Malacostraca. The highest abundance of individual is in Station III (34 ind/m2) and the lowest is at Station I (26 ind/m2). The highest Index Diversity is located at Station II (2.39) and the lowest at Station I (2.30). Based on the index Shannon-Wienner the category water quality in the area mangrove of Village Lubuk Kertang is classified as moderately polluted.
