Fishpond cascades represent interconnected artificial ecosystems with multifaceted ecological and economic potential. This study investigated the fishpond cascade integrated into an agricultural landscape in South Bohemia (Czechia), employed for advanced fry production without any manuring and feeding. Four interconnected fishponds (area 1–3 ha, 1 m mean depth, batch release–refilling of water) were studied over one growing season. Results demonstrated effective nutrient recycling and removal through the cascade, showcasing its self-purification ability. Both total phosphorus and total nitrogen concentrations in the last pond of the cascade averaged at 55 % and 61 % of those in the first pond, respectively. Zooplankton communities displayed seasonal succession patterns with the dominance of microcrustaceans (mainly Daphnia spp.), influencing the early diets of predatory fish. The multiple stocking–multiple harvesting strategy (MSMH) was employed to maximize fish production. Albeit naturally low survival rates (3–16 %) of advanced fish fry in ponds, the ecological and economic benefits of MSMH in the pond cascade system were evident. The study indicated that pond cascade systems can be environment-friendly and economically efficient for advanced fry production, contributing to landscape sustainability, water quality, and cultural heritage. The study encourages, where appropriate local conditions allow, the establishment of pond cascade systems as an ecological engineering concept bridging aquaculture and sustainable landscape development, as well as contributing to bioremediation and other ecosystem services.

鱼塘梯级代表了具有多方面生态和经济潜力的相互关联的人工生态系统。这项研究调查了南波西米亚（捷克）农业景观中的鱼塘级联，用于先进的鱼苗生产，无需任何施肥和投喂。在一个生长季节对四个相互连接的鱼塘（面积 1-3 公顷，平均深度 1 m，分批放水-补水）进行了研究。结果表明，级联可有效回收和去除养分，展示其自净能力。级联最后一个池塘的总磷和总氮浓度平均分别为第一个池塘的 55% 和 61%。浮游动物群落表现出季节性演替模式，其中微型甲壳类动物（主要是水蚤）占主导地位，影响了掠食性鱼类的早期饮食。采用多次放养-多次收获策略（MSMH）来最大限度地提高鱼类产量。尽管池塘中高级鱼苗的存活率自然较低（3-16%），但 MSMH 在池塘梯级系统中的生态和经济效益是显而易见的。研究表明，池塘梯级系统对于先进的鱼苗生产来说既环保又经济高效，有助于景观可持续性、水质和文化遗产。该研究鼓励在适当的当地条件允许的情况下，建立池塘梯级系统作为连接水产养殖和可持续景观开发的生态工程概念，并为生物修复和其他生态系统服务做出贡献。