Efecto de diferentes dosis de productos aplicados en campo como enmiendas para mitigar la depleción de oxígeno disuelto en el cultivo de camarón blanco (litopenaeus vannamei).

Abstract

This study evaluated the effect of hydrogen peroxide (H₂O₂) and sodium percarbonate (SPC) as amendments to mitigate dissolved oxygen depletion in white shrimp (Litopenaeus vannamei) farming, determining their effectiveness as management tools in response to hypoxia events. Controlled experiments were conducted with L. vannamei larvae and juveniles under different concentrations of both products: the doses used for SPC were (0, 10, 20, 40 mg/L) and (0, 8, 16, 32 mg/L) for larvae and juveniles, respectively, while the doses of H2O2 used were (0, 10, 20, and 40 mg/L) and (0, 8, 16, 32 mg/L) for larvae and juveniles, respectively. Water quality parameters (temperature, pH, salinity, dissolved oxygen) were monitored, and the physiological and behavioral symptoms of the organisms were recorded during exposure. Oxygen saturation percentages were calculated, and survival was evaluated in all treatments. The results showed that both products significantly increased dissolved oxygen levels, with H₂O₂ being more effective than SPC, reaching concentrations of up to 15.96 mg/L. However, high doses generated symptoms of physiological stress (lethargy, erratic swimming, color changes) without causing direct mortality. SPC significantly altered the pH of the water more than H₂O₂. It was concluded that both products are effective in preventing hypoxia events, but require specific technical protocols for controlled use, ensuring both oxygenation efficacy and the welfare of organisms cultivated in aquaculture systems.