两种深度养殖池塘水质和浮游藻类多样性分析  

Analysis of water quality and phytoplankton diversity of the two different depth ponds

作　　者：赵旭斌[1,2] 王广军[1] 郁二蒙[1] 龚望宝[1] 余德光[1] 谢骏[1] 

机构地区：[1]中国水产科学研究院珠江水产研究所,广东广州510380 [2]上海海洋大学水产与生命学院,上海201306

出　　处：《上海海洋大学学报》2010年第4期535-539,共5页Journal of Shanghai Ocean University

基　　金：国家"八六三"高技术研究发展计划(2007AA10Z239);现代农业产业技术体系建设专项(NYCYTX-49-13);国家科技支撑计划专题项目(2006BAD03B0102)

摘　　要：本试验研究了珠海市之山水产养殖基地的3个浅水池塘(1.3±0.1)m和3个深水池塘(2.2±0.1)m中的浮游藻类的种类组成、分布和群落结构特点以及理化指标的变化,以探讨两种不同深度池塘的水质和浮游藻类多样性之间的差异,为传统池塘挖深改造提供理论依据。结果显示,浮游藻类密度、藻类组成及藻类优势种群在两种不同深度池塘中存在明显的差异,深水池塘的藻类密度、丰度指数、多样性指数和均匀度指数均显著低于浅水池塘(P<0.05)。总磷(TP)和总氮(TN)浓度在两种不同深度池塘中也存在着明显的差异,深水池塘中的总磷(TP)和总氮(TN)浓度显著高于浅水池塘(P<0.05)。深水池塘中的藻类密度与TN和TP之间存在着显著的相关性,但浅水池塘的藻类密度和TN、TP相关性不显著。In order to investigate the differences in water quality and phytoplankton diversity between two depth ponds and provide the theory basis about transforming traditional pond into deep pond,an experiment was carried out to analyze the composition,distribution and community structure of the phytoplankton and physical and chemical indexes in three shallow pond （1.3±0.1） m and in three deep pond （2.2±0.1） m in Zhuhai Zhishan aquaculture base. The results indicated that the density,composition and predominant species of phytoplankton were significantly different between two depth ponds. The density,richness index,diversity index and evenness index of phytoplankton in deep pond were significantly lower than those in shallow pond. The contents of total phosphorus （TP） and total nitrogen （TN） were also significantly different between ponds. The contents of TP and TN in deep pond were significantly higher than those in shallow pond. The significant correlations between the density of phyloplankton and the contents of TP or TN were found in deep pond,but not in shallow pond.

关 键 词：池塘 浮游藻类 丰度指数 多样性指数 均匀度指数 水质 

分 类 号：Q178.1[生物学—水生生物学]