Keanekaragaman Makrozoobentos dan Kualitas Perairan di Kawasan Mangrove Desa Lubuk Kertang Kabupaten Langkat Provinsi Sumatera Utara

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.
Kata kunci : Kawasan Mangrove, Indeks Keanekaragaman, Makrozoobentos.

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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 FebruaryMarch 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.

Keywords: Area Mangrove, Index Diversity, Macrozoobenthos.

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