| Wei Qinsheng,Wang Baodong,Yao Qingzhen,Yu Zhigang,Fu Mingzhu,Sun Junchuan,Xu Bochao,Xie Linping,Xin Ming. 2019. Physical-biogeochemical interactions and potential effects on phytoplankton and Ulva prolifera in the coastal waters off Qingdao (Yellow Sea, China). Acta Oceanologica Sinica, 38(2):11－23 |
| Physical-biogeochemical interactions and potential effects on phytoplankton and Ulva prolifera in the coastal waters off Qingdao (Yellow Sea, China) |
| 青岛近海物理-生物地球化学过程及其生态响应 |
| Received:July 02, 2017 |
| DOI：10.1007/s13131-019-1344-3 |
| Key words:biogeochemical process upwelling front Ulva prolifera Qingdao coast southern Yellow Sea |
| 中文关键词: 生物地球化学过程 上升流 锋面 青岛近海 南黄海 |
| 基金项目:The Open Fund of Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology under contract No. LMEES201808; the Scientific and Technological Innovation Project of the Qingdao National Laboratory for Marine Science and Technology under contract No. 2016ASKJ02; the National Key Research and Development Program of China under contract Nos 2016YFC1402101 and 2017YFC1404402; the National Natural Science Foundation of China under contract No. 41606040; the National Project of Comprehensive Investigation and Research of Coastal Seas in China under contract No. 908-01-ST03. |
| Author Name | Affiliation | E-mail | | Wei Qinsheng | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, Ocean University of China, Qingdao 266100, China | weiqinsheng@fio.org.cn | | Wang Baodong | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China | | | Yao Qingzhen | Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, Ocean University of China, Qingdao 266100, China | | | Yu Zhigang | Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, Ocean University of China, Qingdao 266100, China | | | Fu Mingzhu | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China | | | Sun Junchuan | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China | | | Xu Bochao | Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, Ocean University of China, Qingdao 266100, China | | | Xie Linping | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China | | | Xin Ming | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China | |
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| Abstract: |
| In recent years, the spectacular massive green tide of Ulva prolifera has become a recurrent phenomenon appearing every summer in the coastal waters off Qingdao (Yellow Sea, China), attracting the attention of scientists and local government. Based on multidisciplinary data collected during summer and winter, this study focuses on the hydrological characteristics and regional biogeochemical processes in coastal waters off Qingdao. The results show that the boundary of the Yellow Sea Cold Water Mass (YSCWM) can reach the Qingdao coastal region in summer and is locally raised to the upper layers to form coastal upwelling beyond tidal mixing and favorable wind. The regional summer upwelling off the Qingdao coast effectively enriches the nutrient concentrations in the upper water column and thus promotes growth of phytoplankton but reduces the dissolved oxygen (DO) concentration and pH value in the bottom. The regional summer upwelling off Qingdao coast may facilitate the growth and regional blooming of the U. prolifera that migrate to this region with the southerly wind. Additionally, the effects of the front on the aggregation of U. prolifera may be significant. In winter, the Yellow Sea Warm Current (YSWC) extends and spreads along the offshore region off the Subei Shoal towards the Qingdao coastal sea. This tongue-shaped warm water meets the cold coastal water off Qingdao, which leads to the formation of a physical front. As a consequence, remarkable fronts of nutrient and chlorophyll a (Chl a) also form between the shoreward warm water and the cold coastal water. This study increases the understanding of the interactions between the regional physical, chemical, and biological processes off the Qingdao coast. |
| 中文摘要: |
| 近些年来，夏季黄海浒苔大规模暴发，并在青岛近岸海域大面积聚集，引起了广泛的关注。本文基于在夏季和冬季所获得的多学科调查资料，重点研究了青岛近海的水文-生物地球化学过程及其生态影响，阐明了该海域物理-化学-生物等多参数之间的耦合响应。研究显示，夏季黄海冷水团的边界可扩展至青岛近岸海域，并在局部涌升至上层水体，形成沿岸上升流；该上升流可对上层营养盐产生一定的补充，进而促进浮游植物的繁殖，并于底层海域对应形成溶解氧（DO）和pH的低值。夏季青岛近海的上升流可能还有利于随南风漂移至此的浒苔的生长，并在一定程度上引起浒苔的局地旺发；同时，夏季该海域特定的锋面系统对浒苔聚集的影响也不容忽视。冬季黄海暖流在苏北浅滩外侧向山东半岛南部海域延伸，扩展至青岛近海的暖水舌与近岸低温水之间的锋面特征明显，而且在向岸暖水与近岸冷水间还对应形成了明显的营养盐和叶绿素（Chl-a）锋面。该项研究从多学科交叉的视角，增进了对青岛近海物理、化学和生物过程之间耦合关系的认识。 |
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