| 摘要: |
| 根据2018年春、秋两季在石狮东部近岸海域进行调查所获得的数据，研究了该海域浮游植物的群落结构，并对浮游植物群落与环境因子的关系进行了相关性分析。通过春、秋两季的调查，经初步鉴定，共145种浮游植物，隶属于3门51属，种类以硅藻为主，其中硅藻122种，甲藻21种，蓝藻2种。在春季的调查中，优势种有奇异棍形藻(Bacillaria paradoxa)、密连角毛藻(Chaetoceros densus)等7种，秋季的优势种有中肋骨条藻(Skeletonema costatum)、琼氏圆筛藻(Coscinodiscus jonesianus)等5种。浮游植物细胞密度在1.81×104～410.65×104cells/m3之间，春季明显高于秋季。春季多样性指数(H′)平均值为3.24，秋季为3.31。相关性分析结果表明，影响石狮东部近岸海域浮游植物群落的主要环境因子有水温、盐度、无机氮含量和活性磷酸盐含量。 |
| 关键词: 海洋生物学 浮游植物 群落结构 环境因子 泉州湾 |
| DOI：10.3969/J.ISSN.2095-4972.2021.02.006 |
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| 基金项目:福建省属公益类科研院所专项资助项目(2020R1006002) |
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| Phytoplankton community structure in the coastal waters of eastern Shishi and its relationships with environmental factors |
| LUO Qiao-qi,ZHANG Yue-ping,CHEN Lan,ZHOU Zhi-dong,LI Hai-ping,HONG Yi-chuan |
| (Fujian Institute of Oceanography, Xiamen 361013, China;Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen 361005, China;Fujian Provincial Key Laboratory of Coast and Island Management Technology, Xiamen 361013, China) |
| Abstract: |
| Based on the data collected in two surveys in the coastal water of eastern Shishi in spring and autumn 2018, community structure of the net phytoplankton was studied and its relationships with environmental factors were performed by correlation analysis. A total of 145 phytoplankton species belonging to 3 phyla and 51 genera was collected and identified as 122 species of Bacillariophyta, 21 species of Pyrrophyta, 2 species of Cyanophyta. Dominant species in spring included Bacillaria paradoxa, Chaetoceros densus, etc., while the dominated in autumn included Skeletonema costatum, Trichodesmium erythraeum, etc. The phytoplankton cell abundance ranged from 1.81×104 cells/m3 to 410.65×104 cells/m3, and the cell density was higher in spring than in autumn. The average Shannon index was 3.24 in spring and 3.31 in autumn, respectively. According to correlation analysis, temperature, salinity, dissolved inorganic nitrogen and active phosphate were main factors affecting the phytoplankton community. |
| Key words: marine biology phytoplankton community structure environmental factor Quanzhou Bay |
