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驱动中国东山湾珊瑚栖息地浮游植物群落结构时空变化的关键因素。

Critical factors driving spatiotemporal variability in the phytoplankton community structure of the coral habitat in Dongshan Bay, China.

作者信息

Zhou Qianqian, Dong Xu, Wang Jianjia, Ye Youyin, Yang Yanyan, Xiang Peng, Chen Yanghang, Zheng Xinqing

机构信息

Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China.

Fujian Provincial Station for Field Observation and Research of Island and Coastal Zone in Zhangzhou, Zhangzhou, China.

出版信息

Front Microbiol. 2024 Feb 16;15:1355028. doi: 10.3389/fmicb.2024.1355028. eCollection 2024.

DOI:10.3389/fmicb.2024.1355028
PMID:38435699
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10904553/
Abstract

This study investigated the spatiotemporal distribution of the phytoplankton in the coral habitat of Dongshan Bay (China), along with critical factors affecting the distribution, during June, August, and December 2022. Phytoplankton abundance in Dongshan Bay exhibited considerably temporal variation, peaking in June 2022, gradually decreasing thereafter, and reaching its lowest point in December 2022. The abundance of bottom-layer phytoplankton consistently exceeded that of the surface layer throughout all seasons. The average phytoplankton abundance in the coral habitat of Dongshan Bay was lower than that in non-coral habitat areas. Fluctuations in the Zhangjiang River and coastal upwelling influenced the diversity and community structure of the phytoplankton. Critical factors causing spatiotemporal variability in phytoplankton community structure included nutrient concentrations and seawater temperature. Nutrients played key roles in influencing various phytoplankton groups. Dominant diatom species, such as and , were positively correlated with ammonia nitrogen, seawater salinity, coral cover, and the number of coral species present. In winter, exhibited a negative correlation with harmful algal bloom species. Additionally, it was found that both in the coral habitat and surrounding open sea, currents, nutrients, and zooplankton may play crucial roles in determining the spatiotemporal variability in the phytoplankton community structure.

摘要

本研究调查了2022年6月、8月和12月中国东山湾珊瑚栖息地浮游植物的时空分布，以及影响其分布的关键因素。东山湾浮游植物丰度呈现出显著的时间变化，在2022年6月达到峰值，此后逐渐下降，并在2022年12月降至最低点。在所有季节中，底层浮游植物的丰度始终超过表层。东山湾珊瑚栖息地浮游植物的平均丰度低于非珊瑚栖息地地区。漳江的波动和沿岸上升流影响了浮游植物的多样性和群落结构。导致浮游植物群落结构时空变异的关键因素包括营养盐浓度和海水温度。营养盐在影响各类浮游植物群体方面发挥着关键作用。优势硅藻物种，如 和 ，与氨氮、海水盐度、珊瑚覆盖率以及现存珊瑚物种数量呈正相关。在冬季， 与有害藻华物种呈负相关。此外，研究发现，在珊瑚栖息地及其周边公海，海流、营养盐和浮游动物可能在决定浮游植物群落结构的时空变异方面发挥关键作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/0973c54ced20/fmicb-15-1355028-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/280a4a1529a9/fmicb-15-1355028-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/bb128838591b/fmicb-15-1355028-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/4f3b96726d01/fmicb-15-1355028-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/8d8cf3b4d516/fmicb-15-1355028-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/8b29962ff02e/fmicb-15-1355028-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/5f9d66778420/fmicb-15-1355028-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/6806a27b57f4/fmicb-15-1355028-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/2ebe791c5613/fmicb-15-1355028-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/61d3e014e768/fmicb-15-1355028-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/0973c54ced20/fmicb-15-1355028-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/280a4a1529a9/fmicb-15-1355028-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/bb128838591b/fmicb-15-1355028-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/4f3b96726d01/fmicb-15-1355028-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/8d8cf3b4d516/fmicb-15-1355028-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/8b29962ff02e/fmicb-15-1355028-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/5f9d66778420/fmicb-15-1355028-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/6806a27b57f4/fmicb-15-1355028-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/2ebe791c5613/fmicb-15-1355028-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/61d3e014e768/fmicb-15-1355028-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4211/10904553/0973c54ced20/fmicb-15-1355028-g010.jpg

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