| 摘要: |
| 为了进一步了解霞浦长表岛附近海域浮游植物群落特征，文章利用2019年5月（春季）、9月（夏季）、12月（秋季）和2020年2月（冬季）4个航次调查的浮游植物和水环境数据，分析了浮游植物群落结构特征，通过冗余性分析（RDA）研究了影响浮游植物群落结构的主要环境因子，结果共鉴定出浮游植物4门60属170种，其中硅藻48属131种，甲藻10属26种，蓝藻1属2种，金藻1属1种。浮游植物以近岸广温广盐种和暖水种为主，全年优势种有13种，春季以东海原甲藻和夜光藻为主，夏季、秋季和冬季以中肋骨条藻和琼氏圆筛藻为主。浮游植物丰度在空间分布上整体呈现近岸高、远岸低、南部低、北部高的趋势特点。RDA和Person相关性分析表明，浮游植物丰度的季节动态变化主要受水温影响；春季和夏季适宜的温度与营养盐促进了浮游植物的大量增长，秋季和冬季则主要受到温度的影响。浮游植物大量繁殖增长甚至暴发出现在春季和夏季，霞浦长表岛海域滨海核电应在春季和夏季重点加强该海域赤潮灾害的监测预警。 |
| 关键词: 长表岛 浮游植物 群落结构 环境因子 |
| DOI：10.20016/j.cnki.hykfygl.20240304.003 |
| 投稿时间：2023-04-09修订日期：2023-12-11 |
| 基金项目:自然资源部东海局青年科技基金（2023180502，2023180304，202114）；海洋赤潮灾害立体监测技术与应用国家海洋局重点实验室开放研究基金（MATHAB202110). |
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| Phytoplankton Community Structure Characteristics and Analysis of Environmental Factors in Sea Area near Xiapu Changbiao Island |
| HUANG Wen,XIA Yongjian,ZHENG Biqi,WEN Dong,CHEN Yong,LI Yun,LI Yiyun |
| Natural Resources Ningde Ocean Center, MNR;Key Laboratory of Marine Ecological Monitoring and Restoration Technologies, MNR; The Coastal Marine Ecological Joint Research Center of Power Plant |
| Abstract: |
| In order to further understand the characteristics of phytoplankton community in the sea area near Changbiao Island in Xiapu, the data of phytoplankton and water environment from four cruises in May (spring), September (summer), December (autumn) and February (winter) in 2019—2020 were analyzed, and the characteristics of phytoplankton community structure were analyzed. The main environmental factors affecting the structure of phytoplankton community were studied by redundancy analysis. The results showed that there were 170 species of phytoplankton in 60 genera, 48 genera and 131 species of diatoms, 26 species of dinoflagellates in 10 genera, 2 species of cyanobacteria in 1 genera and 1 species of diatoms in 1 genera. Phytoplankton are mainly coastal wide-temperature and wide-salt species and warm water species. There are 13 dominant species throughout the year. In spring, Prorocentrum donghaiense and Noctiluca are the main species, and Skeletonema costatum and Siegesbeckia qiongshi are the main species in summer, autumn and winter. The spatial distribution of phytoplankton abundance shows a trend of high nearshore, low farshore, low in the south, and high in the north. Seasonal variation of phytoplankton is mainly affected by water temperature. Appropriate temperature and nutrients in spring and summer promote a large increase in phytoplankton, while autumn and winter are mainly affected by temperature. Now in spring and summer, the coastal nuclear power station of Changbiao Island in Xiapu should focus on monitoring the occurrence of red tide in spring and summer. |
| Key words: Changbiao Island,Phytoplankton,Community structure ,Environmental factors |
