Shifts of dinoflagellate cyst assemblages over the past 100 years indicate the history of harmful algal blooms, eutrophication, and possible alien genotype invasion around the Shandong Peninsula, China
文献类型：期刊论文
| 作者 | Chai, Zhaoyang1,5; Tao, Zhe2,5; Yue, Caixia3,5; Li, Ruoxi5; Liu, Yuyang5,6; Shi, Shuo4,5; Yang, Wanli4,5; Sun, Kun4,5; Tang, Ying Zhong1,5 |
| 刊名 | MARINE POLLUTION BULLETIN
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 223页码:20 |
| 关键词 | Dinoflagellate cysts Sediment core Harmful algal blooms (HABs) Bioindicator Eutrophication Intra-specific diversity |
| ISSN号 | 0025-326X |
| DOI | 10.1016/j.marpolbul.2025.119064 |
| 通讯作者 | Tang, Ying Zhong(yingzhong.tang@qdio.ac.cn) |
| 英文摘要 | Resting cysts play pivotal roles in dinoflagellate ecology (e.g. seeding harmful algal blooms, HABs) and may serve as indicators of ecological processes at different tempo-spatial scales. We investigated the species diversity, and spatio-temporal distribution patterns of dinoflagellate cysts assemblages contained in surface and core sediments around Shandong Peninsula via metabarcoding, and further explored their ecological implications. Metabarcoding sequencing of the cyst assemblages in 79 sediment samples (21 surface samples, and two cores cut into 26 and 32 2 cm-thick layers, respectively) revealed four major ecological inferences: 1) The northwestern Shandong Peninsula exhibited distinct composition, diversity, and community structure of cyst assemblages primarily driven by higher turbidity and lower chlorophyll a, indicating the unique Yellow River discharge-induced hydrological and physicochemical conditions have shaped the distinct phytoplankton community; 2) The area with extremely high abundance of Alexandrium catenella (toxic and HABs-causing species) cysts coincided with multiple documented blooming events in the past two decades, indicating this area may potentially serve as a seedbank of the species blooms; 3) Heterotrophic dinoflagellates exhibited significantly higher species richness and relative abundance since 1980, significantly paralleling to an eutrophication progression in the southern peninsula; 4) The ribotype B of Alexandrium leei and ribotype A of Azadinium dalianense appeared to be native to the region, whereas the other two ribotypes of both species may be recently invaded populations. Our findings exemplified the indicator roles of dinoflagellate cyst assemblages in tracking past HAB events, eutrophication, cryptic bioinvasion, and other natural/anthropogenic activities and in assessing the risk of future HABs. |
| WOS关键词 | YELLOW-RIVER ESTUARY ; SURFACE SEDIMENTS ; BOHAI SEA ; COASTAL WATERS ; TOKYO-BAY ; COCHLODINIUM-POLYKRIKOIDES ; CULTURAL EUTROPHICATION ; ALEXANDRIUM-CATENELLA ; YOKOHAMA-PORT ; RESTING CYSTS |
| 资助项目 | National Key Research and Development Program of China[2024YFF0506901] ; National Natural Science Foundation of China[42406210] ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202203700] |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001633187100004 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204418]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Tang, Ying Zhong |
| 作者单位 | 1.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 2.Shandong Marine Resource & Environm Res Inst, Shandong Key Lab Marine Ecol Restorat, Yantai 264006, Peoples R China 3.Anim Plant & Food Inspect Ctr Nanjing Customs, Nanjing 210000, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 6.Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Qingdao 266590, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chai, Zhaoyang,Tao, Zhe,Yue, Caixia,et al. Shifts of dinoflagellate cyst assemblages over the past 100 years indicate the history of harmful algal blooms, eutrophication, and possible alien genotype invasion around the Shandong Peninsula, China[J]. MARINE POLLUTION BULLETIN,2026,223:20. |
| APA | Chai, Zhaoyang.,Tao, Zhe.,Yue, Caixia.,Li, Ruoxi.,Liu, Yuyang.,...&Tang, Ying Zhong.(2026).Shifts of dinoflagellate cyst assemblages over the past 100 years indicate the history of harmful algal blooms, eutrophication, and possible alien genotype invasion around the Shandong Peninsula, China.MARINE POLLUTION BULLETIN,223,20. |
| MLA | Chai, Zhaoyang,et al."Shifts of dinoflagellate cyst assemblages over the past 100 years indicate the history of harmful algal blooms, eutrophication, and possible alien genotype invasion around the Shandong Peninsula, China".MARINE POLLUTION BULLETIN 223(2026):20. |
入库方式： OAI收割
来源：海洋研究所
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