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作 者:ZHANG Peng ru-yan LI De-liang LIU Xian-bin ZHAO Xing-gui LIU Zhan-guang 张彭如雁;李德亮;刘宪斌;赵兴贵;刘占广(天津科技大学天津市海洋环境保护与修复技术工程中心天津市海洋资源与化学重点实验室,天津300457)
出 处:《Marine Science Bulletin》2016年第2期79-96,共18页海洋通报(英文版)
摘 要:The seasonal and spatial variations of phytoplankton abundance weresupported with microscopic analyses in the surrounding waters of Changli in the spring(May) and summer (August) of 2015. Nineteen sampling stations were selected in thisstudied area (39°26′30"-39°39′ N, 119°17′30"-119°34′03"). During the survey period, atotal of 27 species of phytoplankton have been documented in spring and 63 species insummer. In terms of the community composition at the seasonal level and the spatialdistribution, Dinoflagellates was absolutely dominant in spring and Bacillariophyta wasdominant in summer. The average phytoplankton cell density of phytoplankton speciesshowed substantial seasonal differences. In addition, the dominant species in differentseasons were different. The average values of Shannon-Wiener diversity index (H')were 0.99 in spring and 3.25 in summer, which implied that species diversity in summeris higher than that in spring. Redundancy analysis (RDA) revealed that ammonium(NH4+-N) and nitrites nitrate nitrogens (NO3--N) were the important environmentalfactors influencing the phytoplankton distribution. N is the main environmental drivingfactor result from environmental indicators and RDA analysis.于2015年春季(5月)和夏季(8月)对河北省昌黎近岸海域浮游植物群落结构的时空分布及其与环境因子的关系进行了分析。在研究区域选择十九个采样点(39°26′30"-39°39′N,119°17′30"-119°34′03")。调查结果表明,春季共获得27种浮游植物,夏季63种。春季优势种包括具槽帕拉藻(Paralia sulcata)和夜光藻(Noctiluca scintillans)。夏季浮游植物优势种为中华盒形藻(Biddulphia sinensis)、窄隙角毛藻(Chaetoceros affinis)、洛氏角毛藻(Chaetoceros lorenzianus)、暹罗角毛藻(Chaetocera siamense)、角毛藻属(Chaetoceras sp.)、浮动弯角藻(Eucampia zodiacus)、丹麦细柱藻(Leptocylindrus danicus)、尖刺伪菱形藻(Nitzschia pungens)和中肋骨条藻(Skeletonema costatum)。结果表明,春季浮游植物的总丰度为0.99×10~4 cells/m^3-43.08×10~4 cells/m^3,平均丰度为12.68×10~4 cells/m^3;夏季浮游植物的总丰度为7.83×10~4 cells/m^3-2418.97×10~4 cells/m^3,平均丰度为241.30×10~4 cells/m^3。春季和夏季的多样性指数(H')的平均值分别为0.99和3.25。冗余分析(RDA)表明,氨氮(NH_4^+-N)和硝酸盐氮(NO_3^--N)是影响浮游植物分布的重要环境因素。
关 键 词:phytoplankton community seasonal changes environmental factors Changlicostal zone RDA
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