Abstract
Eukaryotic microorganisms are ubiquitous in the marine environment, and have a wide variety of ecosystem functions. Shenzhen is one of the most developed cities in South China, but the eukaryotic communities in the water along its coastlines remain poorly understood. The study applied 18S rRNA gene ITS (internal transcribed spacer) sequencing to identify the eukaryotic community from twenty sites of Shenzhen coast water. The alpha-diversity of the samples between these sites were significantly different, and the seawater of eastern coast had higher alpha-diversity compared to that of the western coast. The abundance of Chlorophyta was notably higher in the seawater of western coast, but Picozoa was relatively depleted. Specifically, Cryptocaryon, Pseudovorticella, and Cyclotella were significantly higher in the water of western coast, while Guinardia, Minutocellus, and Amoebophrya were increased in eastern samples. The spatially variations of eukaryotic microorganism community in the seawater of Shenzhen coast were associated with the water quality. The results have important significance for the understanding of coastal eukaryotic community, their interaction network, and build a foundation for future management and protection of coastal water quality.
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Data availability
The original 18S rRNA sequencing reads were analyzed in Table S6. The total of 4,169,282 sequences were got from 20 sampling sites. They are belonged to 2942 OTUs, corresponding to different eukaryotic species.
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Acknowledgements
This research was supported by The Future Industrial Development Fund of Shenzhen (JCYJ20170413111950426) and Innovative Strong School Engineering Key Platform Projects by Department of Education in Guangdong Province (2018302). Shenzhen Scientifc Project Fund (Fund No. JCYJ20140722112616608).
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RZ initiated and supervised the study, wrote the manuscript. YL designed the experiments, collected and analyzed the data, prepared the figures. XFZ collected and treated the samples. HLZ did the molecular experiments, sequencing. ZHZ and ZZS executed the experiments, reviewed the manuscript. WSL supervised the study and reviewed the manuscript. All authors have read and approved the final manuscript.
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Zhang, R., Liu, Y., Zhao, X. et al. Eukaryotic communities in coastal water from Shenzhen in South China. Ecotoxicology 30, 1644–1651 (2021). https://doi.org/10.1007/s10646-020-02341-x
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DOI: https://doi.org/10.1007/s10646-020-02341-x