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description Journal article public Siganus

Indeks Kematangan Gonad dan Ukuran Pertama Kali Matang Gonad Ikan Selar Bentong (Selar Crumenophthalmus BLOCH, 1793) di Perairan Kwandang, Gorontalo Utara

Nur Hadi Muharam, Wayan Kantun, Wilma Joanna Moka
Published 2020

Abstract

The present study aims to determine the gonad index (GI) and the size of the gonad maturity of bigeye scad Selar crumenophthalmus. A survey method and direct observation of Selar crumenophthalmus was performed. The present study was conducted from March to May 2020 at Perikanan Nusantara Port in the Kwandang Fisheries. The sampled fish were caught using purse seines, gill nets, hand lines, and light fishing (bagan). Samples were measured and observed every week for 3 months. A total of 2352 samples consisted of 1201 females and 1151 males. The results showed that the gonad index of female bigeye scad fish ranged from 1.628-2.894% (2.325 ± 0.37%), while male GIs ranged from 1.386-2.209 (1.861 ± 0.25%) and the size of the first maturity of male bigeye scad fish gonads was 18.91 cm (fork length) and female bigeye scad was 17.98 cm (fork length).

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