The growth and survival rate in lettuce aquaponic systems (Latuca sativa) of eels in various stocking densities of eel (Monopterus albus)

Abstract

Monopterus albus is a freshwater fish species with the potential to be developed as a farmed fish in the future. The eel demand for domestic and export markets is increasing each year. For the market’s increasing demand, it is necessary to cultivate good technology and management in order to obtain good results. One way to conduct fish farming is by optimizing the stocking density and quality of the water in the maintenance container. One of the systems used is the Aquaponics system. Aquaponics are one of the cultivation technologies available that combine fish farming with water plants. This study aimed to find out the influences of the eel stocking density differences on the growth rate and survival rate of eels in aquaponics. The experiment used a completely randomized design (CRD) with two of five treatments and five replications; P0 (20 eels m-2), P1 (10 eels m-2), P2 (30 eels m-2) and P3 (40 eels m-2). The observed parameters were the growth rate and survival rate of the eels. The analysis of the data was conducted using Analysis of Variance (ANOVA) and this was then followed by Duncan's Multiple Range Test. Based on the research, the survival rate (p <0.05) showed that there was a significant difference in the rate of growth (p <0.05). Based on the research results, the stocking density of 30 eels is m-2. We obtained the highest specific growth rate in the amount of 0.339 ± 0.116% and the highest survival rate was 79%.