Abstract
Greenback mullet (Planiliza subviridis) is one of commercially important fish species and widely caught in Cengkok Beach, Banten Bay. This study aims to examine some reproductive aspects of greenback mullet in Cengkok coastal waters of Banten Bay. The study was conducted from April to August 2019 at Cengkok Beach, Banten Bay. Fish sampling was performed by using gill net and cast net. Samples analysis were conducted including gonad maturity index, fecundity, relationship between body length with fecundity, and egg diameter. A total 223 individuals of mullet were captured, consisted of 113 males and 110 females. The total length and weight ranged from 56-263 mm and 2.3-182 g, respectively. The sex ratio of male and female fish was 1: 0.97 (balanced). Condition factor of male and female fish ranged from 0.99 to 1.02 and 0.96 to 1.03, respectively. Size at first maturity for male and female were 137.8 mm and 163.9 mm, respectively. It is very likely that the spawning season occurred from April to August with the peak season in July. Reproductive potential ranged from 17.284-101.670 eggs with a spawning type as total spawner.
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