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Resting cysts of Alexandrium catenella and A. pacificum (Dinophyceae) in the Bohai and Yellow Seas, China: Abundance, distribution and implications for toxic algal blooms
Dai, Li1,3; Yu, Ren-Cheng1,2,3,4; Geng, Hui-Xia5; Zhao, Yue6; Zhang, Qing-Chun1,2,4; Kong, Fan-Zhou1,2,4; Chen, Zhen-Fan1,3; Zhao, Jia-Yu1,3; Zhou, Ming-Jiang1
2020-03-01
Source PublicationHARMFUL ALGAE
ISSN1568-9883
Volume93Pages:10
Corresponding AuthorYu, Ren-Cheng(rcyu@qdio.ac.cn)
AbstractThe Alexandrium tamarense species complex consists of 5 closely related species that are important bloom-forming dinoflagellates with a complex life cycle. The formation of resting cyst is a key strategy to resist harsh environmental conditions. In this study, the resting cysts of two major bloom-forming species of the A. tamarense species complex in China, A. catenella (Whedon & Kof.) Balech (previously A. fundyense, or A. tamarense species complex Group I) and A. pacificum Litaker (A. tamarense species complex Group IV), were studied in surface sediment collected from the Bohai Sea (BS) and Yellow Sea (YS) during two cruises conducted in 2012 and 2015. Cyst abundance of the A. tamarense species complex was first quantified by the primuline-staining method, and cysts of the two species were subsequently determined using two real-time quantitative PCR (qPCR) assays. Results showed that resting cysts of the A. tamarense species complex were more abundant in the YS than the BS (mean of 480 and 33 cysts g dry weight, DW-1 of sediment, respectively). Cysts were mainly found in the central portion of the northern YS, the area SE (southeast) of the Shandong peninsula, and the area near the Subei Shoal in the southern YS, where surface sediment had a high percentage of clay and silt (particle size < 63 mu m) content. The maximum cyst abundance recorded was 3090 cysts g DW-1 of sediment in 2012 and 3448 cysts g DW-1 in 2015, respectively. Cysts were mainly composed of A. catenella in the YS and the BS, while those of A. pacificum were only detected occasionally at some sampling sites in the YS. Highly abundant resting cysts in surface sediment of the YS may serve as "seed banks" for recurrent toxic blooms of A. catenella and the associated shellfish contamination by paralytic shellfish toxins in the YS.
KeywordAlexandrium catenella (A. fundyense) Alexandrium pacificum Cysts, qPCR Harmful algal bloom
DOI10.1016/j.hal.2020.101794
Indexed BySCI
Language英语
Funding ProjectMinistry of Science and Technology (MoST)[2016YFE0101500] ; Science and Technology Basic Resource Investigation Program of China[2018FY100200] ; Qingdao National Laboratory for Marine Science and Technology Program[2016ASKJ02] ; NSFC[NORC2015-01]
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000527331100012
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167260
Collection海洋生态与环境科学重点实验室
Corresponding AuthorYu, Ren-Cheng
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, Changjiang River Estuary Ecosyst Res Stn, Qingdao 266071, Peoples R China
6.Shandong Univ Sci & Technol, Coll Ocean Sci & Engn, Qingdao 266590, Peoples R China
First Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Corresponding Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Dai, Li,Yu, Ren-Cheng,Geng, Hui-Xia,et al. Resting cysts of Alexandrium catenella and A. pacificum (Dinophyceae) in the Bohai and Yellow Seas, China: Abundance, distribution and implications for toxic algal blooms[J]. HARMFUL ALGAE,2020,93:10.
APA Dai, Li.,Yu, Ren-Cheng.,Geng, Hui-Xia.,Zhao, Yue.,Zhang, Qing-Chun.,...&Zhou, Ming-Jiang.(2020).Resting cysts of Alexandrium catenella and A. pacificum (Dinophyceae) in the Bohai and Yellow Seas, China: Abundance, distribution and implications for toxic algal blooms.HARMFUL ALGAE,93,10.
MLA Dai, Li,et al."Resting cysts of Alexandrium catenella and A. pacificum (Dinophyceae) in the Bohai and Yellow Seas, China: Abundance, distribution and implications for toxic algal blooms".HARMFUL ALGAE 93(2020):10.
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