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[1]刘 陈 魏 南 王 庆 刘之威 罗洪添 杨宇峰**.广东汕头南澳岛近岸海域浮游植物群落结构与环境特征*[J].应用与环境生物学报,2019,25(04):1-5.
 Phytoplankton Community and Environmental Characteristics in the Coastal Waters of Nanao Island,Shantou,Guangdong *.CLC SQ948.8[J].Chinese Journal of Applied & Environmental Biology,2019,25(04):1-5.
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广东汕头南澳岛近岸海域浮游植物群落结构与环境特征*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年04期
页码:
1-5
栏目:
出版日期:
2019-08-31

文章信息/Info

Title:
CLC SQ948.8
作者:
刘 陈 魏 南 王 庆 刘之威 罗洪添 杨宇峰**
暨南大学水生生物研究所 广州 510632
Author(s):
Phytoplankton Community and Environmental Characteristics in the Coastal Waters of Nanao Island Shantou Guangdong *
LIU Chen, WEI Nan, WANG Qing, LIU Zhiwei, LUO Hongtian, YANG Yufeng ** Institute of Hydrobiology, Jinan University, Guangzhou 510632, China
关键词:
南澳岛浮游植物环境因子冗余分析近岸海域环境质量
Keywords:
Nanao Island phytoplan kton environmental factors redundancy analysis coastal water quality
摘要:
浮游植物是海洋生态系统的主要生产者,其群落结构与水质密切相关。为揭示汕头南澳岛环境特征,于2018年1月(冬季)和4月(春季),在环南澳岛近岸海域设置12个采样站位开展浮游植物群落结构和水环境调查。结果显示, 冬季共发现浮游植物74种,以硅藻为主,优势种为具槽帕拉藻(Paralia sulcate),浮游植物丰度平均值为(3.45 ± 1.59)× 104 cells/L ;春季共发现浮游植物80种,以硅藻和甲藻为主,优势种为新月菱形藻(Nitzschia closterium),浮游植物丰度平均值为 (5.23 ± 6.02)× 104 cel ls/L。春季浮游植物丰度和物种数较冬季高,优势种季节变化明显。冬季和春季浮游植物丰度均以青澳湾S11最高, 该站位受到人类活动影响严重;深澳湾龙须菜栽培区S7浮游植物密度相对较低,说明龙须菜规模栽培对浮游植物生长抑制效应明显。冗余分析表明,冬季影响浮游植物群落结构的主要环境因子为总氮(TN)和水温(WT),春季为活性磷酸盐(PO3- 4-P)、亚硝酸盐(NO- 2-N)和铵盐(NH+ 4-N)。本研究表明,南澳岛近岸海域浮游植物群落结构与环境因子的时空分布差异显著,且浮游植物分布特征与水体营养盐关系密切,其中个别样点受人类活动影响较大,水质指标和浮游植物丰度都较高,呈现富营养化趋势;因此,应加强海岛环境和旅游业管理,控制陆源生活污水排放,保护海岛近海环境。(图5表3参41)
Abstract:
Phytoplankton is a major producer of marine ecosystems, and its community structure is closely related to water quality. The investigation of phytoplankton community and water environment in the coastal waters of Nanao Island, was carried out in January (winter) and April (spring) 2018. The results showed that 74 species of phytoplankton were identified in winter, mainly diatoms. The dominant species was Paralia sulcate. The average density of phytoplankton was ( 3.45 ± 1.59) × 104 cells/L. 80 species of phytoplankton were identified in spring, mainly diatoms and dinoflagellates. The dominant species were Nitzschia closterium. The average density of phytoplankton was ( 5.23 ± 6.02) × 104 cells/L. The density and species composition of phytoplankton in spring was higher than that in winter, and the seasonal variation of dominant species was obvious. The density of phytoplankton was the highest in Qingao Bay (S11) in winter and spring whereas that in the cultivation area of Gracilaria lemaneiformis (S7) was relatively low. S11 was seriously affected by human activities. The inhibition effect on phytoplankton growth was obvious due to G. lemaneiformis cultivation. Redundancy analysis found that the main environmental factors affecting the phytoplankton community structure in the coastal waters of Nanao Island were total nitrogen (TN) and water temperature (WT) in winter and reactive phosphate ( PO3- 4-P), nitrite ( NO- 2-N) and ammonium ( NH+ 4-N) in spring ,respectively. This study shows that the phytoplankton community structure and environmental factors in the coastal waters of Nanao Island are significantly different in seasons and regions. The distribution characteristics of phytoplankton are closely related to nutrients in coastal waters. Some of the sampling sites were affected by human activities. Water quality indicators and phytoplankton abundance is high, showing a trend of eutrophication. Therefore, it is necessary to strengthen the island environment and tourism management, control the discharge of domestic sewage from the land source, and protect the offshore environment of the island.

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更新日期/Last Update: 2019-02-01