| ZHAO Li,ZHAO Yanchu,DONG Yi,ZHAO Yuan,ZHANG Wuchang,XU Jianhong,YU Ying,ZHANG Guangtao,XIAO Tian. 2018. Influence of the northern Yellow Sea Cold Water Mass on picoplankton distribution around the Zhangzi Island, northern Yellow Sea. Acta Oceanologica Sinica, 37(5):96－106 |
| Influence of the northern Yellow Sea Cold Water Mass on picoplankton distribution around the Zhangzi Island, northern Yellow Sea |
| 北黄海冷水团对獐子岛微微型浮游生物分布的影响 |
| Received:April 13, 2017 Revised:July 18, 2017 |
| DOI：10.1007/s13131-018-1149-9 |
| Key words:picoplankton northern Yellow Sea Cold Water Mass thermocline Zhangzi Island |
| 中文关键词: 微微型浮游生物 北黄海冷水团 温跃层 獐子岛 |
| 基金项目:The National Natural Science Foundation of China under contract Nos 41306160; the NSFC-Shandong Joint Fund for Marine Science Research Centers under contract No. U1606404; the Strategic Priority Research Program of the Chinese Academy of Sciences under contract No. XDA11020103.1. |
| Author Name | Affiliation | E-mail | | ZHAO Li | CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China | | | ZHAO Yanchu | CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
University of Chinese Academy of Sciences, Beijing 100864, China | | | DONG Yi | CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China | | | ZHAO Yuan | CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China | yuanzhao@qdio.ac.cn | | ZHANG Wuchang | CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China | | | XU Jianhong | CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China | | | YU Ying | Tianjin Bohai Sea Fisheries Research Institute, Tianjin 300457, China | | | ZHANG Guangtao | Jiaozhou Bay Marine Ecosystem Research Station, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China | | | XIAO Tian | CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China | |
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| Abstract: |
| Picoplankton distribution around the Zhangzi Island (northern Yellow Sea) was investigated by monthly observation from July 2009 to June 2010. Three picoplankton populations were discriminated by flow cytometry, namely Synechococcus, picoeukaryotes and heterotrophic prokaryotes. In summer (from July to September), the edge of the northern Yellow Sea Cold Water Mass (NYSCWM) resulting from water column stratification was observed. In the NYSCWM, picoplankton (including Synechococcus, picoeukaryotes and heterotrophic prokaryotes) distributed synchronically with extremely high abundance in the thermocline (20 m) in July and August (especially in August), whereas in the bottom zone of the NYSCWM (below 30 m), picoplankton abundance was quite low. Synechococcus, picoeukaryotes and heterotrophic prokaryotes showed similar response to the NYSCWM, indicating they had similar regulating mechanism under the influence of NYSCWM. Whereas in the non-NYSCWM, Synechococcus, picoeukaryotes and heterotrophic prokaryotes exhibited different distribution patterns, suggesting they had different controlling mechanisms. Statistical analysis indicated that temperature, nutrients (NO3– and PO43–) and ciliate were important factors in regulating picoplankton distribution. The results in this study suggested that the physical event NYSCWM, had strong influence on picoplankton distribution around the Zhangzi Island in the northern Yellow Sea. |
| 中文摘要: |
| 于2009年7月—2010年6月对北黄海獐子岛海域进行了微微型浮游生物逐月调查。流式细胞仪检测到聚球藻、微微型真核浮游生物和异养细菌三个类群。夏季（7-9月）部分调查站位发现了北黄海冷水团的存在。研究结果表明，7、8月（尤其是8月）受冷水团影响的区域，聚球藻、微微型真核浮游生物和异养细菌分布情况基本一致，丰度最大值均出现在20 m温跃层，而冷水团底部区域（30 m以深），微微型浮游生物丰度极低。聚球藻、微微型真核浮游生物和异养细菌对冷水团的响应基本一致，表明冷水团环境中它们的调控机制可能是相同或相似的。而在不受冷水团影响的区域，聚球藻、微微型真核浮游生物和异养细菌分布情况各不相同，可见它们受调控的机制并不相同。统计分析结果显示，微微型浮游生物分布可能与温度、营养盐和纤毛虫摄食等因素相关。上述结果表明，北黄海冷水团对獐子岛微微型浮游生物分布确实存在显著影响。 |
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