| 春季长江口北支邻近海域浮游植物群落及其影响因子 |
| |
| 引用本文： | 高月鑫,江志兵,曾江宁,陈悦,寿鹿.春季长江口北支邻近海域浮游植物群落及其影响因子[J].海洋通报,2018(4):430-439. |
| |
| 作者姓名： | 高月鑫 江志兵 曾江宁 陈悦 寿鹿 |
| |
| 作者单位： | 国家海洋局第二海洋研究所国家海洋局海洋生态系统与生物地球化学重点实验室 |
| |
| 基金项目： | 国家海洋局第二海洋研究所基本科研业务专项 （JT1602；QNYC1703；JG1614）；海洋公益性行业科研专项 （201505027-4）；国家重点研发计划课题 （2016YFC1401603）；长江口- （浙江近海） -邻近东海多学科长期观测计划 （LORCE） |
| |
| 摘 要： | 为了解长江口北支邻近海域浮游植物群落结构特征,于2014年5月对该海域进行采样调查,分析了调查区域内的浮游植物群落组成及环境影响因素,并对比了水采和网采两种采样方法所得样品的差异性。结果表明:水采浮游植物种类数(178种)和细胞平均丰度(270.32×103cells/L)均高于网采浮游植物种类数(154种)和细胞平均丰度(6.44×10~3cells/L)。骨条藻Skeletonema spp.、具槽帕拉藻Paralia sulcata和双角缝舟藻Rhaphoneis amphiceros为两种方法的共同优势种。水采样品优势种还包括线形海链藻Thalassiosira lineate、角海链藻Thalassiosira angulate、全沟藻Teleaulax spp.、锥状斯克里普藻Scrippsiella trochoidea、旋链海链藻Thalassiosira curviseriata,而网采样品优势种还有琼氏圆筛藻Coscinodiscus jonesianus。聚类分析结果显示水采浮游植物群落比网采浮游植物群落更聚集,相似性百分比分析进一步揭示两种采样方法群落格局间非相似性高达68.2%,造成两种采样方法差异的主要判别种为旋链海链藻、角海链藻和盾卵形藻Cocconeis scutellum。冗余分析表明,影响浮游植物群落分布的主要环境因子为悬浮物浓度、温度、透明度和盐度。
|
| 关 键 词： | 长江口北支 浮游植物 群落结构 环境因子 冗余分析 （RDA） |
| 收稿时间： | 2017/9/18 0:00:00 |
| 修稿时间： | 2018/2/27 0:00:00 |
Phytoplankton community in relation to environment factors off the north branch of the Yangtze River Estuary |
| |
| GAO Yue-xin,JIANG Zhi-bing,ZENG Jiang-ning,CHEN Yue and SHOU Lu.Phytoplankton community in relation to environment factors off the north branch of the Yangtze River Estuary[J].Marine Science Bulletin,2018(4):430-439. |
| |
| Authors: | GAO Yue-xin JIANG Zhi-bing ZENG Jiang-ning CHEN Yue and SHOU Lu |
| |
| Institution: | Key laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration,Hangzhou 310012, China,Key laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration,Hangzhou 310012, China,Key laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration,Hangzhou 310012, China,Key laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration,Hangzhou 310012, China and Key laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration,Hangzhou 310012, China |
| |
| Abstract: | In order to understand the structure characters of phytoplankton community off the north branch of the Yangtze River Estuary, phytoplankton samples were obtained in spring 2014 using water and net collection methods. We found considerable differences in the species number, abundance, dominant species, and community structures between water-collected and net-collected samples. The species number (178 species) and average abundance (270.32×103 cells/L) of phytoplankton in water-collected samples were significantly higher than those (154 species and 6.44×103 cells/L) in net-collected samples. Skeletonema spp., Paralia sulcata, and Rhaphoneis amphiceros were dominant both in water-collected and net-collected samples. The dominant species of water-collected samples also included Thalassiosira lineate, Thalassiosira angulate,Teleaulax spp., Sctippsiella trochoidea, and Thalassiosira curviseriata. However, Coscinodiscus jonesianus was dominant in the net-collected phytoplankton. Cluster analysis revealed that the community composition of phytoplankton was more dispersed in net-collected samples than that in water-collected samples. Similarity analysis showed that the average dissimilarity between water-collected phytoplankton and net-collected phytoplankton was 68.2 %. Redundancy analysis suggested that the phytoplankton community composition was mainly associated with suspended solids, temperature, transparency and salinity. |
| |
| Keywords: | north branch of Yangtze River Estuary phytoplankton community structure environmental factors redundancy analysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《海洋通报》浏览原始摘要信息 |
| 点击此处可从《海洋通报》下载免费的PDF全文 |
|
