广西科学2012，Vol.19Issue(4)：377-383,7.
2010年夏季广西北部湾沿岸浮游植物分布特征及其与环境因子的相关性
Distribution Features and Relation of Phytoplankton with Environment Factors in the Coastal Water of Guangxi in Summer 2010
摘要
Abstract
We investigated the abundance and species composition of phytoplankton community in the coastal water of Guangxi (21. 35 - 21. 90'N,118. 00 - 119. 70'E) during 4 to 26 June, 2010. A total of 149 species belonging to 70 genera of 6 classes were identified. Diatoms contributed to 71. 1% of the total phytoplankton species number and 95. 81% of the total phytoplankton cell abundance; followed by dinoflagellates, which accounted for 21. 48% of total phytoplankton species number and 1. 44% of the total phytoplankton cell abundance. The average density was 61. 10×104cell/L,was 58. 54×104 cell/L and 0. 88×104 cell/L for phytoplankton, diatom and dinoflagellate,respectively. Phytoplankton abundance had a lower value in Maowei sea and the coastal zone of Qinzhou port,in addition to the two areas,the quantitative distributions of phytoplankton presented a trend of being higher in the inner bay than in the outer bay. The dominant species were Pseudo - nitzschia pungens ,Skeletonema costatum ,Chaetoceros pseudocurvisetus ,Thalassionema nitzschioides ,Leptocylindrus danicus. P. Pungens and C. Pseudocurvisetus gathered in Fangchenggang sea area, while S. Costatum gathered in the adjacent waters of Beihai. There were no significant rela tionships between phytplankton abundance and temperature,salinity,nitrate,nitrite,ammonia salt and silicate. A positive relationship was found between phytoplankton abundance and phosphate in Beihai sea area and Fangchenggang sea area. Phosphorus was the limiting factor of phytoplankton in the above two sea areas.关键词
浮游植物/物种组成/细胞丰度Key words
phytoplankton,species composition,cell abundance分类
数理科学引用本文复制引用
姜发军,陈波,何碧娟,许铭本,张荣灿,雷富..2010年夏季广西北部湾沿岸浮游植物分布特征及其与环境因子的相关性[J].广西科学,2012,19(4):377-383,7.基金项目
广西自然基金北部湾重大专项项目(2010GXNSFE013001),广西科学院基本业务费(10YJ25HY01)资助. （2010GXNSFE013001）
