Ichthyofauna of Lake Buaya, South Sulawesi

Danau Buaya merupakan salah satu danau yang terletak di bagian tengah Propinsi Sulawesi Selatan. Informasi tentang biodiversitas iktiofauna di danau tersebut belum ada. Oleh karena itu, penelitian ini dilakukan untuk menganalisis komposisi jenis, kelimpahan relatif, indeks keanekaragaman, indeks keseragaman, dan indeks dominansi, ikan yang tertangkap di perairan Danau Buaya. Penelitian ini dilaksanakan pada bulan Maret hingga Mei 2019. Pengambilan sampel dilakukan empat kali selama dua bulan dengan menggunakan alat tangkap jaring dengan ukuran mata jaring 2 inci. Analisis sampel dilaksanakan di Laboratorium Biologi Perikanan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Hasanuddin. Selama penelitian ditemukan 328 ekor ikan yang termasuk dalam 12 spesies dan 9 famili. Kelimpahan individu dan kelimpahan relatif ikan tertinggi ditemukan pada spesies Trichopodus pectoralis (ikan sepat siam). Nilai-nilai indeks keanekaragaman, indeks keseragaman, dan indeks dominansi berturut-turut berkisar 2,11–2,35, 0,85–0,95, dan 0,10–0,15.Lake Buaya is one of the lakes located in the central part of South Sulawesi. Information about ichthyofauna biodiversity in this lake does not yet exist. Therefore, this study was conducted to analyze species composition, relative abundance, diversity index, evenness index, and dominance index, fish caught in the waters of Lake Buaya. This research was conducted in March to May 2019. Sampling was carried out four times over two months using a fishing gear with a mesh size of 2 inches. Sample analysis was carried out at the Fisheries Biology Laboratory, Faculty of Marine Sciences and Fisheries, Hasanuddin University. During the study 328 fish were found that belong to 12 species and 9 families. The highest abundance of individuals and relative fish abundance was found in Trichopodus pectoralis (snakeskin gourami). The range of diversity index, evenness index, and dominance index were 2,11–2,35, 0,85–0,95, and 0,10–0,15, respectively