| LIU Haijiao,HUANG Yajie,ZHAI Weidong,GUO Shujin,JIN Hualong,SUN Jun. 2015. Phytoplankton communities and its controlling factors in summer and autumn in the southern Yellow Sea, China. Acta Oceanologica Sinica, 34(2):114－123 |
| Phytoplankton communities and its controlling factors in summer and autumn in the southern Yellow Sea, China |
| 夏秋季南黄海浮游植物群落及其调控因子 |
| Received:October 09, 2013 Revised:January 23, 2014 |
| DOI：10.1007/s13131-015-0620-0 |
| Key words:phytoplankton southern Yellow Sea YSCW nutrients CCA correlation |
| 中文关键词: 浮游植物 南黄海 黄海冷水团 营养盐 CCA 相关性 |
| 基金项目:The Ocean Public Welfare Scientific Research Project under contract Nos 201105021-03 and 201005015-1; the New Century Excellent Talents in University under contract No. NCET-12-1065; the National Natural Science Foundation of China under contract Nos 41176-136, 41276124, 40776093, 40676089 and NORC2011-01. |
| Author Name | Affiliation | E-mail | | LIU Haijiao | College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China | | | HUANG Yajie | College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China | | | ZHAI Weidong | Key Laboratory for Ecological Environment in Coastal Areas of State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian 116023, China | | | GUO Shujin | College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China | | | JIN Hualong | College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China | | | SUN Jun | College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science and Technology, Tianjin 300457, China | phytoplankton@163.com |
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| Abstract: |
| The phytoplankton water samples were collected in two multidisciplinary investigations which were carried out during summer (June) and autumn (November to December) of 2011. Phytoplankton species composition and abun-dance data were accomplished by Utermöhl method. The phytoplankton community was dominated by diatoms and dinoflagellates in the southern Yellow Sea (YS) in summer and autumn. In summer, Paralia sulcata and Prorocen-trum dentatum were the predominated species, the cell abundance ranged from 0.074 to 107.733×103 cells/L with an average of 9.057×103 cells/L. Two phytoplankton high abundance appeared in northwest part of the survey area and the Changjiang River Estuary, respectively. In autumn, Par. sulcata became the predominant species, and the phyto-plankton cell abundance ranged from 1.035×103 to 8.985×103 cells/L, the average was 3.263×103 cells/L. The phytopl-ankton abundance in surface layer presented the homogeneous distributions. Canonical Correspondence Analysis (CCA) method was applied for discovering the relationship between environmental factors and the common found phytoplankton species. The responses of phytoplankton to nutrients were varied between summer and autumn. The abundance of most predominant species, Par. sulcata was strongly correlated to temperature and salinity in autumn, but not the case in summer. |
| 中文摘要: |
| 分别于2011年夏季(6月)、秋季(11月~12月)在南黄海(31°58.278'--35°58.122'N, E 120°20.600'--124°29.957')进行了两次水文、化学和生物的综合调查.应用Utermöhl沉降法进行了浮游植物水样的丰度计数和物种鉴定.结果表明浮游植物主要由硅藻、甲藻刻画.其中,夏季航次具槽帕拉藻(Paralia sulcata)和具齿原甲藻(Prorocentrum dentatum)占绝对优势,总细胞丰度介于0.074-107.733×103 cells/L,平均值为9.057×103cells/L.两个浮游植物丰度高值区分别出现在调查区西北部和长江口.秋季,具槽帕拉藻(Paralia sulcata)为最优势物种,总丰度介于1.035-8.985×103 cells/L,平均值为3.263×103 cells/L.表层浮游植物分布较为均一.常见物种与环境因子间的典范对应分析(Canonical Correspondence Analysis, CCA)结果表明,浮游植物在夏秋季对营养盐的响应情况不同.具槽帕拉藻(Paralia sulcata)在秋季与温度、盐度呈现很强的负相关,夏季则无此相关性. |
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