Marine College, Shandong University, Weihai, Shandong 264209, China.
Marine College, Shandong University, Weihai, Shandong 264209, China.
Mar Pollut Bull. 2024 Aug;205:116658. doi: 10.1016/j.marpolbul.2024.116658. Epub 2024 Jul 3.
Offshore coastal marine ranching ecosystems provide habitat for diverse and active bacterial communities. In this study, 16S rRNA gene sequencing and multiple bioinformatics methods were applied to investigate assembly dynamics and relationships in different habitats. The higher number of edges in the water network, more balanced ratio of positive and negative links, and more keystone species included in the co-occurrence network of water. Stochastic processes dominated in shaping gut and sediment community assembly (R < 0.5), while water bacterial community assembly were dominated by deterministic processes (R > 0.5). Dissimilarity-overlap curve model indicated that the communities in different habitats have general dynamics and interspecific interaction (P < 0.001). Bacterial source-tracking analysis revealed that the gut was more similar to the sediment than the water bacterial communities. In summary, this study provides basic data for the ecological study of marine ranching through the study of bacterial community dynamics.
近海沿海海洋牧场生态系统为多样且活跃的细菌群落提供了栖息地。在这项研究中，应用了 16S rRNA 基因测序和多种生物信息学方法来研究不同生境中的组装动态和关系。水网络中具有更多的边数、更多的正负连接的平衡比以及更多包含在水共生网络中的关键物种。随机过程主导了肠道和沉积物群落组装（R<0.5），而水细菌群落组装则受确定性过程主导（R>0.5）。差异-重叠曲线模型表明，不同生境中的群落具有一般动态和种间相互作用（P<0.001）。细菌溯源分析表明，肠道与沉积物细菌群落的相似性高于水细菌群落。总之，通过对细菌群落动态的研究，本研究为海洋牧场的生态研究提供了基础数据。
