The app, called Crab R, consists of two main menu sections to help manage and maintain an efficient and sustainable crab hatchery system. The first part is the knowledge section on crab hatchery. It contains detailed information needed for crab hatchery. Contains crab life cycle information, which shows a picture of the life cycle of a crab and a description of the different stages of each baby crab. Tide data presented in tabular form to allow users to monitor and plan daily operations in the hatchery system. There is also pH information displayed in standard colors for measurement. Appropriate total alkalinity data for hatcheries Ammonia readings related to pH for safe use of water in hatchery systems. and information on the appropriate amount of magnesium and calcium according to the salinity level of sea water.
The second part is information about the crab farming system. which focuses on recording and tracking water quality data for each step of cultivation. Start by recording water quality data before entering the water reservoir. By collecting data from natural seawater including salinity, pH and total alkalinity. To be used in water reservoirs for adjusting water quality before use in the hatchery system. Next, water quality data was recorded after 7 days of resting, including chlorine values, ammonia values, calcium values, and magnesium values. Especially in cases where the water has abnormal values. And finally, recording crab hatchery information. It covers details of hatchery operations, color of crab eggs, and determination of release date for crab larvae to enable effective tracking and management. Recording details of hatchery operations, color of crab eggs, and specifying the release date for the crabs. The Economic Aquaculture Hatchery app is designed to help communities effectively manage and maintain their crab hatchery systems. It has the function of recording and checking water quality. Management of crab release data Tide information and information on the life cycle of crabs Including comparing water quality and chemicals in the water. This allows users to analyze and improve the system continuously and efficiently.