文献类型：期刊文献

中文题名：湛江港湾浮游植物的群落结构特征

英文题名：Study on the ecological characteristics of phytoplankton community in Zhanjiang Bay

作者：张才学[1];龚玉艳[1];孙省利[1]

机构：[1]广东海洋大学海洋资源与环境监测中心,广东湛江524088

年份：2012

卷号：31

期号：5

起止页码：530

中文期刊名：海洋通报

外文期刊名：Marine Science Bulletin

收录：CSTPCD、、北大核心2011、CSCD_E2011_2012、北大核心、CSCD

基金：广东省海洋渔业科技推广专项(A200899J01);海洋公益性行业科研专项(200905005-05)

语种：中文

中文关键词：浮游植物;群落结构;季节变化;多样性;环境因子;湛江港湾

外文关键词：phytoplankton; community structure; seasonal variation; diversity; environmental factor; Zhanjiang Bay

中文摘要：2009年2月-11月对广东省湛江湾的浮游植物进行了周年的季节调查,结果共检出浮游植物97属311种(包括变种和变型):春季178种、夏季142种、秋季117种、冬季92种,其中硅藻门54属209种,占总种类数的67.2%;甲藻门20属71种,占总种类数的22.8%;蓝藻门9属14种,占总种类数的4.5%;绿藻门9属11种,占总种类数的3.5%;金藻门2属2种,占总种类数的0.6%;裸藻门1属2种,占总种类数的0.6%;隐藻门1属1种,占总种类数的0.3%;针胞藻纲1属1种,占总种类数的0.3%。优势种共有19种:冬季7种、春季4种、夏季7种、秋季7种,全为硅藻,主要优势种为中肋骨条藻Skeletonema costatum、旋链角毛藻Chaetoceros curvisetus、冰河拟星杆藻Asterionellopsis glacialis、浮动弯角藻Eucampia zoodiacus、丹麦细柱藻Leptocylingdrus danicus和奇异菱形藻Nitzschia paradoxa等,没有全年广布优势种,群落结构具有亚热带和沿岸性特征;4季均出现的种类共有33种,各季节间共有种类数在34~69种,Jaccard种类相似性指数范围在0.17~0.31,季节更替明显。多样性指数和均匀度平均值分别为3.02和0.43,群落结构较稳定;浮游植物细胞丰度在13.60×104-67.33×104cells/L之间,夏季最高,春季次之,冬季最低,属季节单峰型变化,与一般亚热带春、秋季出现丰度高峰不一致。浮游植物细胞丰度与叶绿素a和水温呈极显著的正相关,相关系数分别为0.633和0.418(P<0.01,n=112,双尾),与无机氮和活性硅酸盐呈极显著的负相关,相关系数分别为-0.493和-0.378(P<0.01,n=112,双尾),与其他环境因子不存在明显的相关性。

外文摘要：Seasonal investigations on phytoplankton community and environmental factors were carried out in Zhanjiang Bay of Guangdong, China, in February （winter）, May （spring）, August （summer） and November （autumn） of 2009. The total 311 species in 97 genera （including varieties and forms） were found out in this sea area： 178 species occurred in spring, 142 in summer, 117 in autumn, and 92 in winter. Taxonomically, 209 species in 54 genera were Bacillariophyta, accounting for 67.2 % of all species; 71 species in 20 genera were Pyrrophyta, accounting for 22.8 %; 14 species in 9 genera were Cyanophyta, accounting for 4.5 %; 11 species in 9 genera were Chlorophyta, accounting for 3.5 % ; 2 species in 2 genera were Ch^Tsophyta, accounting for 0.6 % ; 2 species in 1 genus were Euglenophyta, accounting for 0.6 % ; 1 species in 1 genus was Cryptophyta, accounting for 0.3 % and 1 species in 1 genus was Raphidophyeeae, accounting for 0.3 %. 19 dominant species were scrutinized, of which 7 were in winter, 4 in spring, 7 in summer and 7 in autumn. All the dominant species belong to Bacillariophyta. The majority of dominant species were Skeletonema costatum, Chaetoceros curvisetu, Asteriortellopsis glacialis, Eucampia zoodiacus, Leptocylingdrus danicus and Nitzschia paradoxa. No dominant species was widespread in all seasons. All the dominant species had eurythermic and euryhaline characteristics of subtropical community structure along the seashore. 33 species occurred in all seasons, and 34-69 species in two seasons. The Jaccard similarity coefficient ranged 0.17-0.31, implying obvious seasonal succession.The average diversity index and evenness were 3.02 and 0.43, respectively, indicating the lasting community composition in this sea area. The average cell abundance of phytoplankton ranged from 13.60~104 to 67.33 ~104 cells/L, with the maximum in summer, the second abundance in spring and the minimum in winter. The scenario was particular since phytoplankton in other sub-tropical areas often bloomed in spring or autumn. The abundance of phytoplankton was significantly correlative to the chlorophyll a and the water temperature, and coefficient correlation was 0.633 and 0.418 （p〈0.01, n=112, 2-tailed）, respectively. It was negatively related to the DIN and silicate, and coefficient correlations were -0.493 and 0.378 （p〈0.01, n=112, 2-tailed）, respectively. No correlation to the other factors was found.