Spatio-temporal dynamics of phytoplankton community structure in the coastal waters of the Southern Beibu Gulf.

IF 2.9 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Environmental Monitoring and Assessment Pub Date : 2024-07-10 DOI:10.1007/s10661-024-12849-y
Haipeng Pang, Edwine Yongo, Zhiyuan Lu, Qian Li, Xiaojin Liu, Liang Li, Zhiqiang Guo
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Abstract

This study was conducted during October 2021 (autumn) and April 2022 (spring) to explore the phytoplankton community structure, their distribution characteristics, and the influence of environmental factors in the coastal waters of the Southern Beibu Gulf. The 15 sampling sites were grouped based on the difference in offshore distance to analyze the temporal and spatial differences in community structure and environmental driving in the investigated sea area of the coastal waters of the Southern Beibu Gulf. Permutational multivariate analysis of variance was conducted on the sample data in time and space, revealing that there is no significant difference in space (p > 0.05), but there is significant difference in time (p < 0.05). Notably, water pressure, pH, chemical oxygen demand, nitrite, and labile phosphate were higher in autumn, while total ammonia nitrogen, dissolved oxygen, and suspended solids were significantly higher in spring. Additionally, the study identified 87 phytoplankton species belonging to 6 phyla, dominating by Bacillariophyta, followed by Dinophyta and Cyanophyta. The phytoplankton density, Shannon Weiner's diversity index (H'), Pielou's evenness index (J), and Margalef's richness index (D) ranged from 84.88 to 4675.33 cells L-1, 0.56 to 2.58, 0.26 to 0.89, and 1.21 to 3.64, respectively. Permutational multivariate analysis of variance showed non-significant spatial differences in phytoplankton composition (p > 0.05) but seasonal differences (p < 0.05). Furthermore, canonical correspondence analysis (CCA) identified pH, dissolved oxygen, suspended solids, chemical oxygen demand, nitrite, and labile phosphate as key environmental factors influencing the phytoplankton community structure (p < 0.05). In this study, the dynamic changes of phytoplankton community structure and environmental factors in the southern coastal waters of Beibu Gulf were analyzed in detail from two aspects of time and space. The key environmental factors to protect the ecological environment in the southern coastal area of Beibu Gulf were found out. It provides a reference method and theoretical basis for the management and protection of Beibu Gulf and other tropical marine environment.

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北部湾南部沿岸水域浮游植物群落结构的时空动态。
本研究于 2021 年 10 月(秋季)和 2022 年 4 月(春季)对北部湾南部近岸海域浮游 植物群落结构、分布特征及环境因子的影响进行了探讨。根据离岸距离的差异对 15 个采样点进行分组,分析北部湾南部近岸海域调查海域的群落结构时空差异和环境驱动因素。对样本数据进行时空多变量方差分析,结果表明,样本数据在空间上无显著差异(p>0.05),但在时间上存在显著差异(p-1,分别为0.56~2.58、0.26~0.89和1.21~3.64)。多重方差分析显示,浮游植物组成的空间差异不明显(p>0.05),但季节差异明显(p-1,0.56 至 2.58,0.26 至 0.89,1.21 至 3.64)。
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来源期刊
Environmental Monitoring and Assessment
Environmental Monitoring and Assessment 环境科学-环境科学
CiteScore
4.70
自引率
6.70%
发文量
1000
审稿时长
7.3 months
期刊介绍: Environmental Monitoring and Assessment emphasizes technical developments and data arising from environmental monitoring and assessment, the use of scientific principles in the design of monitoring systems at the local, regional and global scales, and the use of monitoring data in assessing the consequences of natural resource management actions and pollution risks to man and the environment.
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