Liu Yunguang, Zhang Yutong, Yao Haiyan, Zheng Zewen, Zhao Wenbo, Lin Gang
Fujian Key Laboratory of Special Marine Bio-Resources Sustainable Utilization, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China.
Biology (Basel). 2025 Jan 20;14(1):101. doi: 10.3390/biology14010101.
, known as a global red tide species, is a common red tide species found in Pingtan Island. To examine the bacterial community structure in different environments during the red tide period of on Pingtan Island, samples were collected from the Algal Bloom Area (ABA), Transition Area (TA), and Non-Algal Bloom Area (NBA) on 6 April 2022, and the environmental physicochemical factors and bacterial community were determined. The outbreak of red tide significantly impacted the water quality and bacterial community structure in the affected sea area. The water quality in the ABA has deteriorated markedly, with the contents of COD, NH-N, and PO in the ABA being significantly higher than those in the TA and NBA, while the pH is significantly lower than that in the TA and NBA. The richness, diversity, and evenness of the bacterial community in the ABA are all lower than those of the TA and NBA. For instance, the Shannon index values of the three sampling points are 4.41, 5.41, and 6.37, respectively. At the phylum level, the dominant bacterial phyla in the ABA are Proteobacteria, Firmicutes, and Cyanobacteria; in the TA, they are Proteobacteria, Bacteroidetes, and Firmicutes; and in the NBA, they are Proteobacteria, Bacteroidetes, and Cyanobacteria. At the genus level, the dominant bacterial genera in the ABA are , , , , and ; in the TA, they are , , , , and ; and in the NBA, they are , , , , and . In the ABA, the combined proportion of and exceeds 50%, with accounting for 93% of the total population. These research results can provide a scientific basis for clarifying the environmental characteristics and bacterial composition during the large-scale red tide in Pingtan Island.
作为一种全球赤潮物种，是平潭岛常见的赤潮物种。为研究平潭岛在[赤潮物种名称]赤潮期间不同环境中的细菌群落结构，于2022年4月6日从藻华区（ABA）、过渡区（TA）和非藻华区（NBA）采集样本，并测定环境理化因子和细菌群落。[赤潮物种名称]赤潮的爆发对受影响海域的水质和细菌群落结构产生了显著影响。藻华区的水质明显恶化，藻华区的化学需氧量、氨氮和总磷含量显著高于过渡区和非藻华区，而pH值显著低于过渡区和非藻华区。藻华区细菌群落的丰富度、多样性和均匀度均低于过渡区和非藻华区。例如，三个采样点的香农指数值分别为4.41、5.41和6.37。在门水平上，藻华区的优势细菌门为变形菌门、厚壁菌门和蓝细菌门；过渡区为变形菌门、拟杆菌门和厚壁菌门；非藻华区为变形菌门、拟杆菌门和蓝细菌门。在属水平上，藻华区的优势细菌属为[具体属名1]、[具体属名2]、[具体属名3]、[具体属名4]和[具体属名5]；过渡区为[具体属名6]、[具体属名7]、[具体属名8]、[具体属名9]和[具体属名10]；非藻华区为[具体属名11]、[具体属名12]、[具体属名13]、[具体属名14]和[具体属名15]。在藻华区，[具体属名1]和[具体属名2]的合计比例超过50%，其中[具体属名1]占[具体属名1]总种群的93%。这些研究结果可为阐明平潭岛大规模[赤潮物种名称]赤潮期间的环境特征和细菌组成提供科学依据。
需注意，原文中部分细菌属名等未给出具体内容，翻译时用[具体属名X]表示。
