ACTION OF HYDROGEN PEROXIDE AGAINST CYANOBACTERIAL BLOOM (Microcystis aeruginosa) IN SHRIMP AQUACULTURE

Shrimp aquaculture is significant for employment and food security. Uncontrolled blooms of Microcystis aeruginosa cause water deterioration and make it less suitable for shrimp welfare in shrimp farming. Its repercussions on shrimp growth and mortality led the researchers to investigate the inhibiting potential of hydrogen peroxide against cyanobacteria. However, the dangers associated with using hydrogen peroxide are primarily related to the proper doses and concentration levels, which prompted the researchers to also focus on studying the appropriate uses and doses of hydrogen peroxide and its effects on shrimp growth and its survival rate for shrimp farming because the usage of permitted hydrogen peroxide is not well-established. Testing different concentrations of hydrogen peroxide for various treatments to see its effects on the nitrification process, they measured the inhibiting potency from its uncontrolled bloom and the shrimp biomass using shrimp growth and survival rate data. The study revealed the effectiveness of hydrogen peroxide at an ideal concentration. The researchers suggest using hydrogen peroxide in shrimp aquaculture against cyanobacteria to achieve good harvests in shrimp farming. Also, to harvest more shrimp, shrimp farm operators should be aware of the various impacts of hydrogen peroxide on shrimp welfare.

对虾养殖对就业与粮食安全具有重要意义。铜绿微囊藻（Microcystis aeruginosa）的无节制爆发会导致水体恶化，降低其对养殖对虾生存的适宜性。鉴于其对对虾生长与存活率的负面影响，研究人员着手探究过氧化氢（hydrogen peroxide）对蓝藻的抑制潜力。然而，过氧化氢的使用风险主要与合理剂量及浓度水平密切相关，这促使研究人员同时聚焦于过氧化氢的适宜使用方式与剂量，及其对养殖对虾生长与存活率的影响——因为目前获批使用的过氧化氢的具体应用方案尚未明确。研究人员设置不同浓度的过氧化氢开展多组处理实验，以观测其对硝化过程（nitrification process）的影响，并通过对虾生长与存活率数据，评估其对铜绿微囊藻爆发的抑制效果以及对虾生物量。本研究证实了过氧化氢在适宜浓度下的抑藻效果。研究人员建议，在对虾养殖中使用过氧化氢防控蓝藻，以实现养殖高产。此外，若要提升对虾产量，养殖从业者需充分了解过氧化氢对对虾生存状态的各类影响。