Wei Jin, Li Yake, Chen Yuanyuan, Lin Qian, Zhang Lin
Hubei Key Laboratory of Animal Nutrition and Feed Science, School of Animal Science and Nutritional Engineering, Wuhan Polytechnic University, Wuhan 430023, China.
Fujian Key Laboratory of Special Aquatic Formula Feed (Fujian Tianma Science and Technology Group Co., Ltd.), Fuqing 350300, China.
J Xenobiot. 2025 Aug 3;15(4):124. doi: 10.3390/jox15040124.
This comprehensive study investigates the spatial distribution of metals in surface water, their accumulation in fish tissues, and their impact on the gut microbiome dynamics of fish in the Qi River, Huanggang City, Hubei Province. Three distinct sampling regions were established: the mining area (A), the transition area (B), and the distant area (C). Our results revealed that metal concentrations were highest in the mining area and decreased with increasing distance from it. The bioaccumulation of metals in fish tissues followed the order of gut > brain > muscle, with some concentrations exceeding food safety standards. Analysis of the gut microbiota showed that and dominated in the mining area, while were more prevalent in the distant area. Heavy metal pollution significantly altered the composition and network structure of the gut microbiota, reducing microbial associations and increasing negative correlations. These findings highlight the profound impact of heavy metal pollution on both fish health and the stability of their gut microbiota, underscoring the urgent need for effective pollution control measures to mitigate ecological risks and protect aquatic biodiversity. Future research should focus on long-term monitoring and exploring potential remediation strategies to restore the health of affected ecosystems.
这项综合性研究调查了湖北省黄冈市蕲河地表水金属的空间分布、它们在鱼类组织中的积累以及它们对鱼类肠道微生物群动态的影响。设立了三个不同的采样区域：矿区（A）、过渡区（B）和远区（C）。我们的结果显示，金属浓度在矿区最高，并随着与矿区距离的增加而降低。鱼类组织中金属的生物积累顺序为肠道>大脑>肌肉，一些浓度超过了食品安全标准。对肠道微生物群的分析表明，[此处原文缺失具体微生物名称]在矿区占主导地位，而[此处原文缺失具体微生物名称]在远区更为普遍。重金属污染显著改变了肠道微生物群的组成和网络结构，减少了微生物间的关联并增加了负相关。这些发现突出了重金属污染对鱼类健康及其肠道微生物群稳定性的深远影响，强调了采取有效污染控制措施以减轻生态风险和保护水生生物多样性的迫切需求。未来的研究应侧重于长期监测并探索潜在的修复策略，以恢复受影响生态系统的健康。
