In recent years, marine hypoxia has frequently occurred in global coastal and estuarine waters with detrimental impacts on marine fauna. In this work, we examined the impact of hypoxia on the mortality, growth, reproduction, and enzyme activities of the mysid Neomysis awatschensis. The mortality rate of adult mysids increased by 100% within 4 h under the hypoxia treatment (2 mg/L), while that of juveniles was 53.33 ± 5.77% after 96 h. The long-term low dissolved oxygen (DO) treatment (5 mg/L for 30 d) significantly reduced the fatty acid content of mysids. A significant reproductive inhibition was also observed: the total juvenile productions in the treatment with DO at 4, 5, and 6 mg/L were only 6.5%, 24%, and 60% of the control group (DO at 8.5 mg/L), respectively. The total superoxide dismutase activity increased significantly in low oxygen treatments. Catalase and lactate dehydrogenase activities first increased and then decreased with the dropping DO concentrations. These results suggest that hypoxia has multiple impacts on marine zooplankton. This may adversely affect higher trophic level organisms and the structure and function of marine ecosystems.

近年来，海洋缺氧频繁发生在全球沿海和河口水域，对海洋动物群造成不利影响。在这项工作中，我们检查了缺氧对阿瓦斯猪线虫的死亡率，生长，繁殖和酶活性的影响。。缺氧处理（2 mg / L）后4 h，成人类腮腺炎的死亡率增加了100％，而96 h后，少年类的死亡率为53.33±5.77％。长期低溶解氧（DO）处理（5 mg / L，持续30 d）显着降低了类固醇的脂肪酸含量。还观察到了显着的生殖抑制：DO分别为4、5和6 mg / L时，少年组的总产量仅为对照组的6.5％，24％和60％（DO为8.5 mg / L）。 ， 分别。在低氧处理中，总超氧化物歧化酶活性显着增加。随着DO浓度的降低，过氧化氢酶和乳酸脱氢酶的活性首先增加，然后降低。这些结果表明，低氧对海洋浮游动物有多种影响。