4.8 Article

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

期刊

ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 56, 期 5, 页码 3056-3064

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.est.1c06502

关键词

harmful algal bloom; Ulva prolifera; sterol; phytoplankton; high-throughput sequencing

资金

  1. National Natural Science Foundation of China [41676106]
  2. Shandong Provincial Natural Science Foundation [ZR2020QD091]
  3. Marine Science and Technology Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao) [2018SDKJ0504-4]
  4. Science and Technology Basic Resources Investigation Program of China [2018FY100200]

向作者/读者索取更多资源

The occurrence of massive macroalgal blooms may promote blooms of specific groups of microalgae through alteration of the marine environment.
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.

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