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March 31, 2022
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April 30, 2022
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Abstract

Ekosistem terumbu karang yang cukup luas terhampar di sekitar perairan Pulau Tikus yang terdiri dari ± 238 hektar. Dua lokasi fishing ground bagi nelayan yang tinggal di wilayah pesisir Kota Bengkulu adalah KarangBayang dan Karang Lebar. Penelitian ini bertujuan untuk menganalisis struktur komunitas ikan karang di kedua lokasi tersebut. Itu menggunakan metode survei. Data dianalisis menggunakan metode statistik deskriptif. Analisis struktur komunitas ikan karang terdiri dari kelimpahan, komposisi jenis (KJ), indeks keanekaragaman (H'), indeks kemerataan (E), dan indeks dominasi (C). Penelitian ini menemukan 11 famili dan 22 spesies ikan karang dengan total 324 individu. Kepadatan ikan karang diperkirakan sekitar 2.160 ekor/ha. Rata-rata ikan target, ikan mayor, dan ikan indikator adalah 9,62%, 61,41%, dan 28,97% untuk Karang Bayang, dan 7,82%, 60,92%, dan 31,27% untuk Karang Lebar. ndeks keanekaragaman ikan karang (H') di setiap lokasi berada pada kisaran 2,37-2,50 dan 2,27-2,46. Selanjutnya nilai indeks kemerataan (E) ikan karang untuk kedua lokasi tersebut rata-rata sebesar 0,92 (Karang Bayang) dan 0,94 (Karang Lebar) yang menunjukkan kondisi populasi ikan karang yang stabil. Indeks dominasi (C) ditemukan agak tinggi di Karang Lebar (0,14) dibandingkan KarangBayang (0,11) yang menunjukkan tidak ada dominasi ikan karang.Kondisi komunitas ikan karang di lokasi penelitian masih cukup baik. Nilai IRDI masing-masing lokasi adalah 34,15% dan 31,70% yang mencerminkan kesehatan terumbu karang dalam kondisi sedang.

 

Kata kunci :  Ikan karang; Karang Bayang; Karang Lebar; Struktur komunitas; Pulau  Tikus

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How to Cite
Zamdial, Z., Bakhtiar, D., Hartono, D., Johan, Y., Utami, M. A. F., & Herliany, N. E. (2022). STUDI STRUKTUR KOMUNITAS IKAN KARANG DI KARANG BAYANG DAN KARANG LEBAR, PERAIRAN PULAU TIKUS,KOTA BENGKULU. JURNAL ENGGANO, 7(1), 106–120. https://doi.org/10.31186/jenggano.7.1.106-120
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