Research
| Title： | Differential community assembly mechanisms of shared and unique bacterioplankton in diverse aquaculture ponds |
|---|---|
| First author： | Mao, Chengzhi; Li, Xinghao; Xiong, Xueping; Kong, Qiaoyi; Wang, Yunfeng; Han, Jian; Cao, Xiuyun; Xiong, Xiong; Yuan, Jing; Wang, Qidong; Huang, Jie |
| Journal： | AQUACULTURE |
| Years： | 2025 |
| DOI： | 10.1016/j.aquaculture.2024.741999 |
| Abstract： | Microorganisms are crucial for enhancing production efficiency in aquaculture environments. The management of microbial communities in aquaculture ponds varies with the cultured species, yet the underlying ecological mechanisms governing microbial assembly and turnover are complex and not fully understood. This study investigates the impact of three typical freshwater aquaculture species, Eriocheir sinensis (crab), Procambarus clarkii (crayfish) and Ctenopharyngodon idellus (grass carp) on microbial community dynamics within their respective ponds. Employing high-throughput sequencing of 116 samples collected throughout the aquaculture cycle, we revealed that bacterial communities in aquaculture ponds vary significantly across sampling dates, and exhibit distinct patterns based on the type of cultured species (P = 0.001). Dispersal limitation and homogeneous selection, interacting dynamically with environmental factors such as temperature, selenium and doxycycline, were identified as the primary ecological forces driving these differences. Furthermore, stochastic processes such as weak selection and drift were notably more influential in shaping the unique microbial taxa within each pond, while shared microbial communities were predominantly determined by dispersal limitations. This comprehensive analysis highlights the intricate interplay of ecological and environmental factors in the assembly and turnover of microbial communities in aquaculture systems. |
