富营养化
营养水平
生态学
浮游植物
河口
生态系统
亚热带
群落结构
海洋生态系统
初级生产者
食物网
生物
环境科学
营养物
作者
Chen Xing,Huaxian Zhao,Gonglingxia Jiang,Junwu Tang,Qiangsheng Xu,Xiaoli Li,Yuqing Huang,Shuqi Zou,Ke Dong,Weiguo Hou,Lianghao Pan,Pengbin Wang,Liangliang Huang,Nan Li
标识
DOI:10.1016/j.marpolbul.2022.113327
摘要
Small chromophytic phytoplankton (SCP) are anticipated to be more important for a significant proportion of primary production in estuarine-coastal ecosystems. However, responses of SCP community to coastal eutrophication are still unclear. In this study, we investigated diversity, co-occurrence and assembly features of SCP communities, as well as relationship with environmental factors in subtropical Beibu Gulf. The results exhibited that the alpha diversity and beta diversity of SCP communities were significantly different among eutrophic states. Co-occurrence network revealed a complex interaction that most amplicon sequence variants (ASVs) in modules of the network were specific to trophic states. Further, phylogenetic based β-nearest taxon distance analyses revealed that stochastic processes mainly provided 69.26% contribution to SCP community assembly, whereas deterministic processes dominated community assembly in heavy eutrophic state. Overall, our findings elucidate the mechanism of diversity and assembly in SCP community and promote the understanding of SCP ecology related to subtropical coastal eutrophication.
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