摘要
对2011—2014年夏季福建省闽江口以南海域浮游植物群落结构特征及其与环境因子的关系进行了分析。结果表明：2011—2014年夏季福建省闽江口以南海域共鉴定出浮游植物4门51属193种,以硅藻为主;年平均浮游植物细胞密度在1.20×105~3.87×105个/dm3之间,浮游植物细胞密度平面分布总体呈由近岸向外海、湾内向湾外逐渐降低的趋势,而多样性指数平面分布却呈与之相反趋势;浮游植物细胞密度与活性硅酸盐、活性磷酸盐、铵盐、硝酸盐和无机氮呈明显正相关;浮游植物对无机氮的吸收主要以铵盐的形式,其次为硝酸盐。
The present study reported on the community structure of phytoplankton and its relationship to the environment factors,based on phytoplankton water samples collected in southern part area of Minjiang Estuary from 2011 to 2014 in summer.A total of 193 species belonging to 51 genera（4 phyla） of phytoplankton in survey area were indentified.Diatom was the major phytoplankton group.The annual average cell abundance of the phytoplankton varied from 1.20 × 105 to 3.87 × 105 individual / dm3.Horizontal distribution of phytoplankton cell abundance showed a trend of decreasing gradually from inshore to offshore,inner to outer bay.But the horizontal distribution of phytoplankton biodiversity Shannon-Wiener diversity index was on the contrary of that of phytoplankton cell abundance.Statistical analysis showed that the variations of phytoplankton cell abundance were positive correlated obviously with the concentrations of silicate,phosphate,ammonia,nitrate and nitrogen.The phytoplankton growth was mainly limited by ammonia concentration,and secondly by the nitrate concentration.
出处
《渔业研究》
2016年第1期56-66,共11页
Journal of Fisheries Research
关键词
浮游植物
闽江口
群落结构
环境因子
phytoplankton
Minjiang Estuary
community structure
environmental factors
