【摘要】 为减轻凡纳滨对虾（Litopenaeus vannamei）养殖水体因无机氮富集而产生的毒害影响，利用凡纳滨对虾与盐生植物北美海蓬子（Salicornia bigelovii）构建了复合养殖系统，并探究了其污染物去除效应。结果表明，在海蓬子-对虾复合养殖系统中，养殖水体的温度、pH和溶解氧（DO）保持相对稳定的波动，海蓬子对亚硝态氮（NO^-₂-N）和氨氮（NH⁺₄-N）的去除率分别达88.88%和91.40%,而硝态氮（NO^-₃-N）浓度比对虾单独养殖系统高11%。在复合养殖系统中生长的对虾相对生长速率（RGR）显著高于单独养殖系统中的对虾，分别为4.08%和3.27%。在复合养殖系统中，在不更换养殖水体的情况下，通过海蓬子对水体中无机氮的吸收利用，可以降低养殖系统中NH⁺₄-N和NO^-₂-N的浓度，且可提高对虾的生长和营养物质积累，同时达到对虾增产的养殖目的。研究表明，此种复合养殖方式具有潜在的推广应用价值。更多还原

【Abstract】 In order to reduce the toxic effect of inorganic nitrogen negative electrode in the water of Litopenaeus vannamei culture, L. vannamei and halophyte Salicornia bigelovii were used to establish an integrated multi-trophic aquaculture system（IMTA）. The removal effect of pollutants was also investigated. The results showed that, the temperature, pH, and dissolved oxygen of the cultured water maintained relatively stable with fluctuations in IMTA. In IMTA, the removal rates of NO^-₂-N and NH⁺₄-N from the culture water were 88.88% and 91.40%, respectively, and the concentration of NO^-₃-N was higher than that of the single culture system of L. vannamei. The relative growth rate（RGR） of L. vannamei in IMTA was higher than that of single culture of L. vannamei. The RGR of L. vannamei in two systems were 4.08% and 3.27%, respectively. It indicated that, in IMTA, the absorption and utilization of inorganic nitrogen from culture water decreased the concentrations of NH⁺₄-N and NO^-₂-N, but improved the growth and nutrient accumulation of L. vannamei. This IMTA method has potential values of popularization and application.更多还原