Keanekaragaman dan Kelimpahan Famili Chaetodontidae Serta Hubungannya dengan Tutupan Karang Hidup di Pulau Weh, Sabang
DOI:
https://doi.org/10.31629/akuatiklestari.v8i2.6407Keywords:
Ikan Kepe-kepe, Korelasi, Regresi Linier, Karang Hidup, SabangAbstract
Ikan karang merupakan salah satu biota laut yang sangat sensitif terhadap perubahan ekosistem terumbu karang. Oleh karena itu, ada tidaknya spesies ikan karang tertentu dapat menggambarkan kondisi terumbu karang. Penelitian ini bertujuan untuk menyelidiki hubungan antara keanekaragaman dan kelimpahan ikan Chaetodontidae dengan tutupan karang hidup di dua belas lokasi Pulau Weh, Sabang. Metode Sensus Visual Bawah Air digunakan untuk mengumpulkan data ikan karang. Data persentase tutupan karang hidup dikumpulkan dengan menggunakan metode Transek Foto Bawah Air. Hasil penelitian menemukan total 24 spesies ikan Chaetodontidae yang mewakili empat marga dengan jumlah individu yang tercatat pada saat pengamatan sebanyak 1.041 individu. Rata-rata kategori tutupan karang hidup di Pulau Weh, Sabang dalam kondisi cukup baik (31,255%). Ikan Chaetodontidae di Pulau Weh, Sabang termasuk dalam kategori keanekaragaman rendah dengan rata-rata indeks keanekaragaman (H) = 2,059 serta kelimpahan rata-rata Ikan Chaetodontidae sebesar 2.479 (ind/ha). Terdapat korelasi yang lemah antara jumlah jenis Chaetodontidae dengan tutupan karang hidup dan juga antara kelimpahan Chaetodontidae dengan tutupan karang Pulau Weh, Sabang dengan nilai koefisien determinasi R2 regresi linier masing-masing sebesar 0,4299 dan 0,2522.
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