Institutional Repository of Key Laboratory of Marine Ecology & Environmental Sciences, CAS
| Impacts of Changjiang River Discharge and Kuroshio Intrusion on the Diatom and Dinoflagellate Blooms in the East China Sea | |
Zhou, Zheng-Xi1,2,3 ; Yu, Ren-Cheng1,2,3,4; Sun, Chaojiao5; Feng, Ming5; Zhou, Ming-Jiang1
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| 2019-07-01 | |
| Source Publication | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
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| ISSN | 2169-9275 |
| Volume | 124Issue:7Pages:5244-5257 |
| Corresponding Author | Yu, Ren-Cheng(rcyu@qdio.ac.cn) |
| Abstract | The coastal area adjacent to the Changjiang River estuary is a high-risk region for harmful algal blooms. Both Changjiang River discharge and Kuroshio intrusion influence the hydrological conditions and nutrient composition in this area which could affect the onset of diatom and dinoflagellate blooms. However, current understandings on their roles in regulating different microalgal blooms are limited. In this study, changes in stratification, water masses, and the ratio of phosphorus to nitrogen were examined during the diatom and dinoflagellate blooms in 2005 using ship cruise data. The observations showed that both the diatom and dinoflagellate blooms occurred in the continental coastal water. By enhancing the pycnocline and phosphorus stress, the Changjiang diluted water plays an important role in affecting the diatom bloom. The dinoflagellate bloom is partly supported by the supply of phosphate transported by Kuroshio intrusion and upwelling. The results of this study will help elucidate the mechanisms of large-scale harmful algal blooms in the coastal area adjacent to the Changjiang River estuary. Plain Language Summary The coastal area adjacent to the Changjiang River estuary is a high-risk region for harmful algal blooms. Intensive blooms of diatoms and dinoflagellates have been observed every year from spring to early summer. In 2005, field cruises were conducted in the East China Sea to investigate the succession process from the diatom to the dinoflagellate bloom. Based on the field investigation data, the characteristics and variation of stratification, water masses, nutrient composition, and microalgal blooms were analyzed to find out how Changjiang River discharge and Kuroshio intrusion affected the dynamics of different microalgal blooms. Four water masses were identified during the blooms, and both types of microalgal blooms were found to occur in the continental coastal water. The Changjiang River discharge was found to play an important role during the diatom bloom by enhancing the pycnocline and phosphorus stress, while the Kuroshio intrusion supplied phosphate for the development and maintenance of the large-scale dinoflagellate bloom. The results could help elucidate the mechanisms of harmful algal blooms in the coastal area adjacent to the Changjiang River estuary. |
| Keyword | diatom bloom dinoflagellate bloom East China Sea Kuroshio intrusion Changjiang River discharge |
| DOI | 10.1029/2019JC015158 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of the Ministry of Science and Technology of China (MoST)[2017YFC1404304] ; Program of the Qingdao National Laboratory for Marine Science and Technology (QNLM)[2016ASKJ02] ; CAS-CSIRO Project Fund (CAS)[GJHZ1888] ; China Postdoctoral Science Foundation[2017M622291] ; Shandong province[U1606404] ; National Natural Science Foundation of China (NSFC)[U1606404] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA19060203] |
| WOS Research Area | Oceanography |
| WOS Subject | Oceanography |
| WOS ID | WOS:000482059700049 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/162391 |
| Collection | 海洋生态与环境科学重点实验室 |
| Corresponding Author | Yu, Ren-Cheng |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Shandong, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Shandong, Peoples R China 3.Ctr Ocean Megasci, Qingdao, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 5.CSIRO Oceans & Atmosphere, Crawley, WA, Australia |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Zhou, Zheng-Xi,Yu, Ren-Cheng,Sun, Chaojiao,et al. Impacts of Changjiang River Discharge and Kuroshio Intrusion on the Diatom and Dinoflagellate Blooms in the East China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2019,124(7):5244-5257. |
| APA | Zhou, Zheng-Xi,Yu, Ren-Cheng,Sun, Chaojiao,Feng, Ming,&Zhou, Ming-Jiang.(2019).Impacts of Changjiang River Discharge and Kuroshio Intrusion on the Diatom and Dinoflagellate Blooms in the East China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,124(7),5244-5257. |
| MLA | Zhou, Zheng-Xi,et al."Impacts of Changjiang River Discharge and Kuroshio Intrusion on the Diatom and Dinoflagellate Blooms in the East China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 124.7(2019):5244-5257. |
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