Aquaculture plays an important role in human nutrition and economic development but is often expanded to the detriment of the natural environment. Several research projects, aimed at cultivating microalgae in aquaculture wastewaters (AWWs) to reduce organic loads and minerals, along with the production of microalgal cell mass and metabolic products, are underway. Microalgal cell mass is of high nutritional value and is regarded as a candidate to replace, partially at least, the fish meal in the fish feed. Also, microalgal cell mass is considered as a feedstock in the bio-fuel manufacture, as well as a source of high-added value metabolic products. The production of these valuable products can be combined with the reuse of AWWs in the light of environmental concerns related with the aquaculture sector. Many research papers published in the last decade demonstrate that plenty of microalgae species are able to efficiently grow in AWWs, mainly derived from fish and shrimp farms, and produce valuable metabolites reducing the AWW pollutant load. We conclude that bio-remediation of AWWs combining with the production of microalgae cell mass and specific metabolites is probably the most convenient and economical solution for AWWs management and can contribute to the sustainable growth of the aquaculture.

中文翻译：

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微藻的高附加值产品以及作为微藻生长介质的水产养殖废水的前景。

水产养殖在人类营养和经济发展中发挥着重要作用，但往往扩大到对自然环境的不利影响。正在进行一些旨在在水产养殖废水（AWW）中培养微藻以减少有机负荷和矿物质以及产生微藻细胞团和代谢产物的研究项目。微藻细胞群具有很高的营养价值，被认为是至少部分替代鱼饲料中鱼粉的候选者。同样，微藻细胞团被认为是生物燃料生产中的原料，也是高附加值代谢产物的来源。鉴于与水产养殖部门有关的环境问题，可以将这些有价值的产品的生产与AWW的再利用结合起来。在过去十年中发表的许多研究论文表明，许多微藻物种能够有效地在AWW中生长，主要来自鱼类和虾类养殖场，并产生有价值的代谢产物，从而降低AWW污染物的负荷。我们得出的结论是，对AWW进行生物修复，再结合微藻细胞团和特定代谢产物的产生，可能是AWW管理最便捷，最经济的解决方案，并且可以促进水产养殖业的可持续增长。