Study of Bawal Bintang fish (Trachinotus blochii) hatchery at the Lombok marine aquaculture, West Nusa Tenggara, Indonesia

Abstract

Bawal Bintang fish (Tracinotus blochii) has high economic value, to meet both domestic and foreign consumption needs. Bawal Bintang fish cultivation has become a commercial business to be developed because of its relatively fast growth, relatively easy maintainance, and public interest in it. The objective of this study is to find out the hatchery techniques of Bawal Bintang Fish and the obstacles that arise in their hatchery at the Lombok Marine Cultivation Fisheries, West Nusa Tenggara. The method used was descriptive with data collection including primary data and secondary data. Data collection was done by means of active participation, observation, interviews, and literature study. Bawal Bintang fish hatchery technique began with tank preparation, spawning, egg distribution, and maintenance for 20-25 days. Bawal Bintang fish hatchery included feed management, water quality monitoring, and pest and disease control. After rearing the larvae for 20-25 days or reaching seedling size, then harvesting was carried out to transfer them to the nursery tank using the RAS system. The problem that arose in the hatchery of Bawal Bintang fish was the frequent occurrence of Bawal Bintang larvae that fell from a pond.