SIZE STRUCTURE AND GONAD MATURITY OF RED SNAPPER LUTJANUS MALABARICUS IN PINRANG WATERS, MAKASSAR STRAIT, SOUTH SULAWESI, INDONESIANuraeni L Rapi, Mesalina Tri Hidayani, Murwantoko, Djumanto and Agoes Soegianto
The aim of this study was to determine the size structure, gonad maturity and sex ratio of red snapper Lutjanus malabaricusi. The present research was conducted from March to July 2020 in Pinrang waters, Makassar Strait South Sulawesi. The parameters observed including size structure, gonad maturity and sex ratio. Data analysis was used Chi- square for sex ratio and size at first maturity was calculated using Spearman Karber equations, the gonad sample was histological analyzed. The results showed that a total of 1040 fish which consisted of 505 males and 535 females. The total length of snapper ranged from 19.5 to 69.5 cm with the sex ratio is equally distributed. Gonadal maturity level was under immature (36%) and mature gonad (64%). The size of the first-time maturity was 29 cm (male) and 37 cm (female).