Tian Yong-Qiang, Yu Chao-Chao, Wang Lei, Huang Bang-Qin
Fujian Province Key Laboratory of Coastal Ecology and Environmental Studies, College of Environment and Ecology, Xiamen University, Xiamen 361005, Fujian, China.
Ying Yong Sheng Tai Xue Bao. 2012 Sep;23(9):2559-65.
An investigation was conducted on the phytoplankton' s community composition, abundance, and their relations with environmental factors in Beixi of Jiulongjiang River, Fujian Province in February (dry season), May (wet season), and October (normal season), 2011. A total of 107 phytoplankton species were identified, belonging to 64 genera and 7 phyla. The dominant species changed with seasons. Campylomonas marssoni and Cyclotella meneghiniana dominated in dry season, Scenedesmus quadricauda and Crucigenia tetrapedia dominated in wet season, and Merismopedia tenuissima dominated in normal season. The phytoplankton's abundance was the highest in dry season (averaged 154.77 x 10(4) cells x L(-1)), followed by in normal season (76.40 x 10(4) cells x L(-1)), and in wet season (45.40 x 10(4) cells x L(-1)). The abundance in dry and normal seasons was significantly positively correlated with water ammonium nitrogen concentration (P<0.05) , while that in wet season was significantly positively correlated with water temperature (P<0.01). Canonical correspondence analysis (CCA) showed that water temperature was the most important factor affecting the phytoplankton's community structure, and dissolved phosphorous concentration also played important role for the community structure. The CCA ordination plots could well display the phytoplankton' s community structure and its relationships with environmental factors.
2011年2月（旱季）、5月（雨季）和10月（平季），对福建省九龙江北溪浮游植物的群落组成、丰度及其与环境因子的关系进行了调查。共鉴定出107种浮游植物，隶属于7门64属。优势种随季节变化。旱季以马氏弯角藻和梅尼小环藻为主，雨季以四尾栅藻和十字藻为主，平季以纤细平板藻为主。浮游植物丰度在旱季最高（平均为154.77×10⁴个细胞·L⁻¹），其次是平季（76.40×10⁴个细胞·L⁻¹），雨季最低（45.40×10⁴个细胞·L⁻¹）。旱季和平季的浮游植物丰度与水体铵氮浓度显著正相关（P<0.05），而雨季与水温显著正相关（P<0.01）。典范对应分析（CCA）表明，水温是影响浮游植物群落结构的最重要因素，溶解磷浓度对群落结构也有重要作用。CCA排序图能很好地展示浮游植物的群落结构及其与环境因子的关系。
