Juveniles of the shrimp Litopenaeus vannamei (3.3 ± 0.4 g) were exposed separately to nitrite (0.0, 1.1, 2.6, and 5.3 mg/L nitrogen as nitrite [NO₂⁻-N]) and nitrate (0, 90, 225 and 400 mg/L nitrogen as nitrate [NO₃⁻-N]) concentrations equivalent to 0, 10, 25, and 50% of the LC₅₀-96 h value of NO₂⁻-N and NO₃⁻-N in low salinity water (3 g/L). Shrimps responded to nitrite and nitrate according to changes in oxyhemocyanin, glucose, lactate and ion levels in the hemolymph after 6, 12, 24, and 48 h of exposure. Oxyhemocyanin levels decreased with increasing nitrite and nitrate levels and were higher at 50% exposure to the contaminants. Compared to the control, glucose and lactate increased significantly at 50% exposure to nitrite and nitrate, particularly at 12 and 24 h. Na⁺ in the hemolymph changed with nitrite and nitrate, while K⁺ only changed ˜with nitrite.

南美白对虾（3.3±0.4 g）的幼鱼分别暴露于亚硝酸盐（0.0、1.1、2.6和5.3 mg / L的亚硝酸盐形式[NO ₂ ^-- N]）和硝酸盐（0、90、225和400）毫克/升氮作为硝酸盐[NO ₃ ^- -N]）的浓度相当于0，10，25，和LC 50％₅₀ NO -96 H值为₂ ^- -N和NO ₃ ^--N在低盐度水中（3 g / L）。在暴露6、12、24和48小时后，虾根据血红素中氧合血色素，葡萄糖，乳酸和离子水平的变化对亚硝酸盐和硝酸盐作出反应。氧合血红素水平随着亚硝酸盐和硝酸盐水平的增加而降低，在接触污染物50％时更高。与对照组相比，葡萄糖和乳酸盐在50％暴露于亚硝酸盐和硝酸盐时显着增加，尤其是在12和24小时。血淋巴中的Na ⁺随亚硝酸盐和硝酸盐而变化，而K ⁺仅随亚硝酸盐而变化。