浙江西门岛红树林细菌群落季节性特征及环境驱动因素

doi:10.11978/2025100

热带海洋学报 ›› 2026, Vol. 45 ›› Issue (2): 117-128.doi: 10.11978/2025100CSTR: 32234.14.2025100

浙江西门岛红树林细菌群落季节性特征及环境驱动因素

蒋守殿¹(), 胡鑫²(), 蓝珮心¹, 姚李勤¹, 水柏年¹, 纪建达³, 何茂求¹()

1.浙江海洋大学水产学院, 浙江舟山 316022
2.广东省海洋发展规划研究中心, 广东广州 510220
3.自然资源部第三海洋研究所, 厦门福建 361000

收稿日期:2025-06-09 修回日期:2025-08-13 出版日期:2026-03-10 发布日期:2026-03-26
通讯作者: 何茂求
作者简介:
蒋守殿(1999—), 男, 江苏省宿迁市人, 硕士研究生, 从事海洋生态学研究。email: jiangshoudian@zjou.edu.cn;
胡鑫(1993—), 男, 江西省吉安市人, 博士, 从事海洋生态学研究。email: huxinest@163.com
基金资助:
龙港市河口红树林生态系统监测项目(21038007721); 自然资源部2024年度部省合作项目(2024ZRBSHZ103); 崂山实验室科技创新项目(LSKJ202202905)

Seasonal distribution characteristics and environmental driving factors of bacterial communities in mangrove sediments of Ximen Island, Zhejiang Province

JIANG Shoudian¹(), HU Xin²(), LAN Peixin¹, YAO Liqin¹, SHUI Bonian¹, JI Jianda³, HE Maoqiu¹()

1. Zhejiang Ocean University, Fisheries College, Zhoushan 316022, China
2. Guangdong Center for Marine Development Research, Guangzhou 510220, China
3. Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China

Received:2025-06-09 Revised:2025-08-13 Online:2026-03-10 Published:2026-03-26
Contact: HE Maoqiu
Supported by:
Monitoring Project of the Mangrove Ecosystem at the Estuary of Longgang(21038007721); Science and Technology Projects of Guangdong Provincial Department of Natural Resources(2024ZRBSHZ103); Lao Shan Laboratory’s Scientific and Technological Innovation Project(LSKJ202202905)

摘要/Abstract

摘要：

红树林位于热带和亚热带地区海洋与陆地的交汇处, 其高生产力环境孕育了丰富的微生物群落, 这些微生物在维持红树林生态功能以及驱动元素循环等过程中发挥关键性作用。文章以浙江省西门岛红树林生态系统为研究对象, 采用高通量测序技术对表层沉积物细菌群落进行了系统分析, 探究细菌多样性的季节特征及其与环境参数的关联性。研究结果表明, 西门岛红树林沉积物细菌群落组成中, 变形菌门(Proteobacteria, 39.11%)、脱硫杆菌门(Desulfobacterota, 10.02%)、拟杆菌门(Bacteroidota, 9.17%)共同构成了优势菌群。其中, 变形菌门和脱硫杆菌门呈现春季富集特征, 而拟杆菌门则在夏季表现出显著优势。细菌群落的多样性指数呈现显著的季节性动态变化: 丰富度指数(Richness)在冬季达到峰值(2136 ± 235), 而香农指数(Shannon)显示春季(6.05 ± 0.15)显著低于秋冬两季(P < 0.05)。β多样性结果表明, 春季、秋季和冬季样品的细菌群落组成差异显著, 呈现出明显的季节特异性。

关键词: 红树林, 沉积物, 细菌多样性, 西门岛

Abstract:

Mangrove forests, located at the interface of marine and terrestrial ecosystems in tropical and subtropical regions, harbor highly productive environments that support diverse microbial communities. These communities play a pivotal role in sustaining mangrove ecological functions and driving biogeochemical cycles. This study investigated the Ximen Island mangrove ecosystem in Zhejiang Province, employing high-throughput sequencing to systematically analyze the bacterial communities in surface sediments. We explored seasonal variations in bacterial diversity and assessed their correlations with environmental parameters. Results revealed that the sediment bacterial community in Ximen Island mangroves was dominated by Proteobacteria (39.11%), Desulfobacterota (10.02%), and Bacteroidota (9.17%). Among these, Proteobacteria and Desulfobacterota exhibited significant enrichment in spring, while Bacteroidota enriched in summer. Bacterial diversity indices exhibited significant seasonal dynamics: The richness index peaked in winter (2136 ± 235), while the Shannon index in spring (6.05 ± 0.15) was significantly lower than in autumn and winter (P < 0.05). Principal component analysis (PCA) and linear discriminant analysis effect size analyses (LEfSe) results demonstrated seasonal specificity in bacterial community composition across spring, autumn, and winter.

Key words: mangrove, sediment, bacterial diversity, Ximen Island

中图分类号:

P735.12

蒋守殿, 胡鑫, 蓝珮心, 姚李勤, 水柏年, 纪建达, 何茂求. 浙江西门岛红树林细菌群落季节性特征及环境驱动因素[J]. 热带海洋学报, 2026, 45(2): 117-128.

JIANG Shoudian, HU Xin, LAN Peixin, YAO Liqin, SHUI Bonian, JI Jianda, HE Maoqiu. Seasonal distribution characteristics and environmental driving factors of bacterial communities in mangrove sediments of Ximen Island, Zhejiang Province[J]. Journal of Tropical Oceanography, 2026, 45(2): 117-128.

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环境参数	春季	夏季	秋季	冬季
温度/℃	19.13±0.45^b	31.58±0.71^a	19.30±0.50^b	10.75±1.24^c
盐度/‰	14.71±1.57^c	27.73±3.35^a	30.00±2.42^a	21.10±3.54^b
pH	7.41±0.13^a	7.20±0.30^a	7.29±0.14^a	7.60±0.41^a
TC/(mg·g^-1)	13.71±0.89^a	13.86±0.55^a	13.68±0.91^a	12.97±1.11^a
TN/(mg·g^-1)	1.24±0.16^a	1.18±0.12^a	1.23±0.02^a	1.10±0.09^a
TC/TN	11.15±0.82^a	11.78±0.79^a	11.11±0.87^a	11.77±0.27^a
黏土含量/%	39.89±1.51^a	39.14±1.16^a	40.52±0.49^a	36.08±1.13^b
粉砂含量/%	59.48±0.87^ab	60.74±1.13^a	59.29±0.18^ab	57.78±2.41^b
砂含量/%	0.54±0.08^b	—	0.76±0.00^b	6.14±3.33^a

α多样性指数	春季	夏季	秋季	冬季
丰富度指数	1588±103^c	1898±161^ab	1708±89^bc	2136±235^a
香农指数	6.05±0.15^b	6.22±0.14^ab	6.32±0.12^a	6.41±0.17^a
辛普森指数	0.99±0.00^a	0.99±0.00^a	0.99±0.00^a	0.99±0.00^a
均匀度指数	0.57±0.01^b	0.57±0.00^ab	0.59±0.01^a	0.58±0.01^ab

浙江西门岛红树林细菌群落季节性特征及环境驱动因素

Seasonal distribution characteristics and environmental driving factors of bacterial communities in mangrove sediments of Ximen Island, Zhejiang Province

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