Protein‐dependent aquaculture generates large amounts of nutrient‐rich residuals; a feasible way to develop sustainable production systems is to integrate Decoupled Aquaponic Systems (DAPS) with residual water bioprocesses, to combine Photoautotrophic Biofloc Technology (P‐BFT) aquaculture and hydroponic horticulture. This study describes the characteristics of residual water from Oreochromis niloticus aquaculture performed with P‐BFT inoculated with Chlorella microalgae, reared during the nursery (180 fish m³) and grow‐out (55 fish m³) phases. The experiment included five treatments: photoautotrophic BFT inoculated with Chlorella sp. (M), C. sorokiniana 2714 (CV), and C. sorokiniana 2805 (CS), and chemoautotrophic (Q) and heterotrophic (H) as controls. Elemental characteristics in liquid and solid residual fractions (15 macro‐ and micronutrients) were compared among treatments and against Hoagland & Arnon solution with hydroponics and used in Nutrient Film Technique (NFT) hydroponic horticulture including five plant species: lettuce (Lactuca sativa), pak‐choi (Brassica rapa subsp. chinensis), rocket (Eruca sativa), spinach (Spinacia oleracea) and basil (Ocimum basilicum). The physicochemical parameters were ideal for O. niloticus and plants. The relationship between N:P was ideal until weeks 16–22 in the photoautotrophic treatments, compared with hydroponic solutions. Micronutrient content was greater in the solid than a liquid fraction. The best BFT effluent regarding fish and plant growth was photoautotrophic treatments. Oreochromis niloticus BFT aquaculture in photoautotrophic mode using microalgae Chlorella inoculations provided residual water beneficial to hydroponic horticulture in DAPS located in coastal arid zones where freshwater is scarce, improving aquaculture performance and reusing water and nutrients.

中文翻译：

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在光合养分条件下，利用尼罗罗非鱼水产养殖的残留水和生物絮凝技术进行水培园艺

依赖蛋白质的水产养殖会产生大量营养丰富的残留物；发展可持续生产系统的可行方法是将去耦水培系统（DAPS）与残留水生物过程相集成，将光养植物生物絮凝技术（P-BFT）水产养殖和水培园艺相结合。这项研究描述了尼罗罗非鱼水产养殖中残留的水的特征，这些水是用接种了微藻小球藻的P‐BFT进行的，并在育苗阶段（180鱼m ³）和成鱼阶段（55鱼m ³）进行饲养。该实验包括五种处理：接种小球藻菌种的自养BFT 。（M），C。索罗基亚纳2714（CV），和Ç。以sorokiniana 2805（CS）和化学自养（Q）和异养（H）作为对照。比较了不同处理方法和水培法对Hoagland＆Arnon溶液中液体和固体残留部分（15种微量元素和微量元素）的元素特征，并将其用于营养膜技术（NFT）水培园艺，包括5种植物：生菜（Lactuca sativa），白-choi（芜菁亚种对虾），火箭（芸水稻），菠菜（菠菜）和罗勒（罗勒）。的理化参数对于O是理想的。罗非鱼和植物。与水培溶液相比，在光养养疗法中，N：P之间的关系直到16-22周才是理想的。固体中的微量营养素含量高于液体中的微量营养素含量。关于鱼类和植物生长的最佳BFT废水是光合自养处理。使用微藻接种小球藻的自养模式的尼罗罗非鱼BFT水产养殖为淡水稀少的沿海干旱地区的DAPS提供了有益于水培园艺的残留水，改善了水产养殖性能并重用了水和养分。