文献类型：期刊文献

英文题名：Innovative aquaculture-photovoltaic recirculating aquaculture system: Design, performance and microbial ecological mechanisms

作者：Ruan, Zhuohao[1];Xu, Jingxuan[1,2];Yao, Huajia[1,3];Yin, Peng[1];Zhao, Jichen[1];Chen, Xiaoying[1];Guo, Qiang[1];Ou, Hongrui[1];Zeng, Weiwei[3];Huang, Wen[1]

机构：[1]Guangdong Acad Agr Sci, Inst Anim Sci,Minist Agr & Rural Affairs, Key Lab Anim Nutr & Feed Sci South China, Collaborat Innovat Ctr Aquat Sci,Guangdong Key Lab, Guangzhou 510640, Peoples R China;[2]Guangdong Ocean Univ, Coll Fisheries, Zhanjiang 524088, Peoples R China;[3]Foshan Univ, Coll Anim Sci & Technol, Foshan 528225, Peoples R China

年份：2026

卷号：613

外文期刊名：AQUACULTURE

收录：SCI-EXPANDED(收录号：WOS:001613341200002)、、WOS

基金：This study was funded from Guangdong Academy of Agricultural Science Talent Program (R2022YJ-YB3014, R2020YJ-QG001, R2022PY-QY008) .

语种：英文

外文关键词：Aquavoltaics; Integrated photovoltaic-aquaculture systems; Recirculating aquaculture systems (RAS); Microbial diversity; Sustainable intensification

外文摘要：This study evaluated a novel integrated aquaculture-photovoltaic recirculating aquaculture system (AP-RAS) featuring multi-stage water treatment (sedimentation area, aeration area, adsorption area, darkening processing area, sand filter area) for culturing largemouth bass (Micropterus salmoides). The system's performance was assessed over a seven-month trial in a 22-pond demonstration facility, where solar panels were strategically positioned above the treatment infrastructure. Water quality parameters (NH4+, NO2- , NO3- , TN, TP, SS, COD) were monitored biweekly, and microbial community dynamics were analyzed via high-throughput sequencing. Over the trial period, the system maintained optimal water quality while utilizing solar panels strategically positioned above the treatment infrastructure. Bass grew from an initial mean weight of 74.63 f 5.3 g to 190.59 f 21.87 g, achieving specific growth rates comparable to conventional RAS and a yield of 12.6 kg/m3. During stable operation, the system achieved significant and sustained reductions in key water quality parameters: NO2- (0.10 f 0.08 mg/L); NO3- (0.22 f 0.14 mg/L); NH4+ (0.29 f 0.18 mg/L); TN (4.32 f 0.76 mg/L), TP (0.43 f 0.29 mg/L); SS (8.83 f 4.76 mg/L); COD (3.29 f 1.05 mg/L). These concentrations were maintained well below critical toxicity thresholds and were lower than levels typical of conventional RAS or aquaponic systems. Sequential treatment zones effectively removed dissolved inorganic nitrogen (DIN), total phosphorus (TP), chemical oxygen demand (COD), and suspended solids (SS), with the adsorption and darkening zones proving particularly effective for nitrate reduction and particulate settling. High-throughput sequencing revealed distinct microbial communities across treatment zones, dominated by Proteobacteria, Bacteroidota, and Actinobacteriota. The trend of alpha diversity first increasing and then stabilizing over time indicated system maturation, while beta diversity reflected spatiotemporal heterogeneity driven by environmental conditions. The strategic placement of PV panels above the treatment infrastructure supplied operational energy without compromising water quality, directly addressing the high energy demands of RAS. This AP-RAS model successfully reconciled high productivity with stringent environmental control, significantly reducing nitrogen pollution and the system's energy footprint. It represents a viable, sustainable approach for intensive aquaculture, underpinned by efficient multi-stage treatment and optimized microbial ecology.