Green Tides in the Yellow Sea Promoted the Proliferation of Pelagophyte Aureococcus anophagefferens

Harmful algal blooms formed by fast-growing, ephemeral macroalgae have expanded worldwide, yet there is limited knowledge of their potential ecological consequences. Here, we select intense green tides formed by Ulva prolifera in the Yellow Sea, China, to examine the ecological consequences of these...

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Bibliographic Details
Published in:Environmental science & technology 2022-03, Vol.56 (5), p.3056-3064
Main Authors: Zhao, Jia-Yu, Geng, Hui-Xia, Zhang, Qing-Chun, Li, Yi-Fan, Kong, Fan-Zhou, Yan, Tian, Zhou, Ming-Jiang, Yang, Dezhou, Yuan, Yongquan, Yu, Ren-Cheng
Format: Article
Language:English
Subjects:
Algae
Algal blooms
Aquatic plants
Aureococcus anophagefferens
Biomarkers
Brown tides
Cell Proliferation
China
Chlorophyll
Chlorophyta
Contaminants in Aquatic and Terrestrial Environments
Ecological effects
Ecosystem
Eutrophication
Green tides
Harmful Algal Bloom
Marine environment
Next-generation sequencing
Phytoplankton
Phytoplankton - physiology
Plankton
Seaweeds
Stramenopiles - chemistry
Stramenopiles - physiology
Ulva - physiology
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Summary:Harmful algal blooms formed by fast-growing, ephemeral macroalgae have expanded worldwide, yet there is limited knowledge of their potential ecological consequences. Here, we select intense green tides formed by Ulva prolifera in the Yellow Sea, China, to examine the ecological consequences of these blooms. Using 28-isofucosterol in the surface sediment as a biomarker of green algae, we identified the settlement region of massive floating green algae in the area southeast of the Shandong Peninsula in the southern Yellow Sea. The responses of the phytoplankton assemblage from the deep chlorophyll-a maximum layer were then resolved using high-throughput sequencing. We found striking changes in the phytoplankton community in the settlement region after an intensive green tide in 2016, characterized by a remarkable increase in the abundance of the pelagophyte Aureococcus anophagefferens, the causative species of ecosystem disruptive brown tides. Our study strongly suggests that the occurrence of massive macroalgal blooms may promote blooms of specific groups of microalgae through alteration of the marine environment.
ISSN:0013-936X
1520-5851
DOI:10.1021/acs.est.1c06502