Struktur Komunitas Makrozoobentos di Wilayah Rehabilitasi Mangrove PLTU Banten 3 Lontar Kecamatan Kemiri Kabupaten Tangerang

Abstract

PLTU Banten 3 Lontar membuat program rehabilitasi kawasan pesisir dengan melakukan penanaman mangrove. Makrozoobentos dapat dijadikan indikator keberhasilan ekosistem mangrove. Penelitian ini bertujuan menganalisis korelasi struktur komunitas makrozoobentos dengan waktu penanaman mangrove. Penelitian dilakukan di kawasan rehabilitasi mangrove PLTU Banten 3 Lontar pada bulan Januari sampai Februari 2020. Penentuan stasiun secara purposive sampling berdasarkan usia mangrove. Hasil makrozoobentos yang diperoleh menunjukkan nilai kepadatan rendah, nilai keanekaragaman rendah dengan nilai di bawah 1. Hasil rehabilitasi mangrove yang lebih lama usianya memiliki nilai kepadatan, keanekaragaman, dan kesergaman lebih tinggi dibandingkan dengan mangrove rehabilitasi yang baru. Tekstur substrat liat berpasir, nilai suhu dengan rata-rata 34,2 °C, nilai Dissolved Oxygen dengan rata-rata 4,77 mg/l. Nilai salinitas dengan rata-rata 22,7 %, nilai pH rata-rata 7,38 dan nilai Biochemical Oxygen Demand rata-rata 4,01 mg/l. Nilai koefisien kontingensi sebesar 0,62 menunjukkan adanya hubungan antara makrozoobentos dengan usia mangrove.

PLTU Banten 3 Lontar made a rehabilitation program for coastal areas by planting mangroves. Macrozoobenthos can be used as an indicator of the success of mangrove ecosystem. This study aims to analyze the correlation between macrozoobenthic community structure and mangrove planting time. The research was conducted in the mangrove rehabilitation area of PLTU Banten 3 Lontar from January to February 2020. Determination of stations by purposive sampling based on mangrove age. Result showed that there was higher diversity, and eveness compared to the newly rehabilitated mangroves. The texture of the clay substrate is sandy, temperature values range from 34.2 °C, Dissolved Oxygen values with an average of 4.77 mg/l. The salinity value was around 22.7 %, the average pH value was 7.38 and the Biochemical Oxygen Demand value was around 4.01 mg/l. The contingency coefficient value is 0.62 indicating a relationship between macrozoobenthos and mangrove age.