Editorial on the Research TopicAquaculture environment regulation and system engineering Aquatic products are a major source of high-quality foods for humans, and as the population grows, global fisheries and aquaculture production is expanding. Since the 1990s, capture production of fisheries has reached a bottleneck and tended to stabilize at around 90 million tons (FAO, 2022). In contrast, aquaculture production has entered a rapidly developing period, and aquaculture has now become one of the fastest-growing areas of food production. In 2020, aquaculture provided 88 million tonnes of aquatic products worldwide (FAO, 2022), significantly contributing to global food and nutrition security. Furthermore, aquaculture will play an increasing role in global aquatic product supply to fill the gap between declining capture production and increasing human demand (Zhang et al., 2022a).To keep up with the continuous expansion of the aquaculture industry, the intensive and efficient aquaculture mode represented by indoor factory recirculating aquaculture system (RAS) is emerging and developing and gradually replacing the traditional pond culture (Campanati et al., 2022;Chen and Gao, 2023). The indoor factory RAS maximizes aquaculture efficiency by regulating various environmental factors to the optimum level (