Short-term changes in algal blooms and phytoplankton community after the passage of Super Typhoon Lekima in a temperate and inner sea (Bohai Sea) in China
文献类型： 外文期刊
作者： Jiang, Tao 1 ; Wu, Guannan 1 ; Niu, Pengli 2 ; Cui, Zhengguo 2 ; Bian, Xiaodong 2 ; Xie, Yixuan 2 ; Shi, Honghua 3 ; Xu, Xiaotao 5 ; Qu, Keming 2 ;
作者机构： 1.Yantai Univ, Sch Ocean, Yantai 264005, Peoples R China
2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Minist Agr, Qingdao 266071, Peoples R China
3.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266237, Peoples R China
5.Hydrol Ctr Weifang City, Weifang 261061, Peoples R China
关键词： Harmful algal blooms; Typhoon; Lekima; Nutrients; Bohai Sea
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：7.129； 五年影响因子：7.284 ）
ISSN： 0147-6513
年卷期： 2022 年 232 卷
页码：
收录情况： SCI
摘要： Extensive multi-species harmful algal blooms (HABs) were triggered by Super Typhoon Lekima in Laizhou Bay (Bohai Sea) in August 2019. After conducting two field cruises before and after the typhoon passage, we employed both high-performance liquid chromatography (HPLC)-pigment and microscopic methods to study the changes in the phytoplankton community and biomass. Following the passage of Lekima, the average surface salinity decreased, while dissolved inorganic nitrogen and dissolved silicate concentrations increased in the study area. The phytoplankton abundance and Chl a significantly increased after the typhoon event. Post-typhoon, the highest abundance values of Pseudo-nitzschia spp., Noctiluca scintillans, and Coscinodiscus spp. reached 10(6) cells/L and those of Bacillaria pcocillifera, Ceratium spp., and Gymnodinium catenatum were in the order of 10(5) cells/L. HPLC-pigment CHEMTAX analysis showed that the biomass (Chl a) of dinoflagellates, diatoms, cryptophytes, chlorophytes, and haptophytes increased significantly after the typhoon. The increase in Chl a concentration was mainly attributable to large-sized phytoplankton, which are mostly diatoms and dinoflagellates. This study highlights that typhoons may cause HABs by introducing large amounts of freshwater and nutrients and change the phytoplankton community in a temperate and inner bay.
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