Gonad Maturity and Fecundity of Indian Mackerel (Rastellinger kanagurta) in North Gorontalo Waters, Indonesia

Indian mackerel (Rastellinger kanagurta) is one of the fish that can be caught by fishermen in North Gorontalo waters. Excessive fishing without regard to condition will cause a decrease quality and quantity resources. Estimation size at first maturity way determine population development water. This study aims relationship between level gonad fecundity research was conducted October-December 2021 Kwandang Archipelago Fishing Port. The gonads observed morphologically determination using volumetric gravimetric methods. Mackerel waters dominated 1. highest 14,800 eggs lowest 5,000 eggs. directly proportional, if gonadal value high, also higher. spawning season for does not take place October-December, this characterized low fecundity. Based on values every month, peak allegedly occurred shortly after GSI values.