The effect of different stocking densities on ammonia (NH3) and nitrate (NO3) concentration on striped snakehead ( Channa striata) culture in the bucket

Abstract

Fish farming in the bucket is a fishery technology that is being developed using an aquaponic system. Striped snakehead fish (Channa striata) is one of the economically important types of fish but the cultivation of striped snakehead fish using an aquaponic system has never been carried out, so it is necessary to know the optimal stocking density of striped snakehead fish to minimize the risk of stress for fish. This study aims to determine the effect of different stocking densities on ammonia (NH3) and nitrate (NO3) concentration on striped snakehead (Channa striata) culture in the bucket. This research using 5 treatments and 4 replications, namely P0 1 fish/Liters; P1 2 fish/Liters; P2 3 fish/Liters; P3 4 fish/Liters; and P4 5 fish/Liters. The observed parameters are ammonia (NH3) and nitrate (NO3) concentration. The results of this study showed that the value of the ammonia concentration was between 0,089-0,609 mg/L and the nitrate concentration was between 0,931-1,539 mg/L. Based on the results of this study, it can be cocluded that treatment of different stocking density affect the concentration of ammonia (NH3) and nitrate (NO3) in the cultivation of Snakehead fish (Channa striata) in the bucket.