The influence of nanobubble aeration system on rearing water temperature and its effects on oxygen consumption of Penaeus vannamei postlarvae 8

Water temperature and oxygen consumption are important indicators of physiological work for Penaeus vannamei. The preferred P. vannamei shrimp farming is indicated by low water temperature and oxygen consumption and this can be achieved by using nanobubble aeration. This study aims to assess the water temperature and oxygen consumption of P. vannamei postlarvae (PL) 8. In this experimental study, PL 8 at a density of 200 inds./L were treated with nanobubble aeration (16 mg/L) and compared with control (without nanobubble). The experiments were conducted with five replications. ANOVA was applied to calculate the significance level of treatments. The result showed the nanobubble influences (p<0.05) on temperature in which treatment (23.07⁰C; 95%CI: 22.9 to 23.3) was lower than control (27.17⁰C; 95%CI: 27.1 to 27.2). The apparent influences were also observed in oxygen consumption (p<0.05) in which the nanobubble can reduce the oxygen consumption up to 66%. To conclude, the nanobubble has shown a positive influence on P. vannamei shrimp farming as nanobubble is able to allow oxygen to last longer in water and reduce oxygen consumption as well.