中国水产科学2012，Vol.19Issue(4)：620-625,6.DOI:10.3724/SP.J.1118.2012.00620
凡纳滨对虾养殖塘叶绿素a与水质因子主成分多元线性回归分析
Exploring the influence of water quality parameters on chlorophyll-a in Litopenaeus vannamei culture ponds using the method of multiple linear regression of principal components
摘要
Abstract
Water quality in 22 ponds in two farms culturing Litopenaeus vannamei in the Fengxian District of Shanghai was investigated from May to September 2010. Fifteen water quality parameters were measured, including chlorophyll-a (Chla), water temperature (T), pH, dissolved oxygen (DO), transparency, total dissolved solids (TDS), chemical oxygen demand (CODMn), nitrogen (TN) and phosphorus (TP). In total, 107 groups of monitoring data were obtained and compiled as descriptive statistics. Multiple linear regression following principal component analysis was used to simulate the relationship between water quality variables and Chla in Litopenaeus vannamei culture ponds. Based on the criterion of eigenvalues greater than 1, four latent variables occupied 77.56% to the cumulative contribution to variance. Subsequent multiple linear regression analysis showed that a latent variable F\ had the maximum correlation with Chla and that the model was: Cchi.a=0.140+0.121F]. TP and CODMn were clearly positively correlated with chlorophyll-a: Cchi.a=-0.052+0.005CODMn+0.188TP. Phosphorus was the limiting factor for the primary productivity of the ponds. We conclude that organics and phosphorus are the main factors that need to be focused on to control eutrophication in Litopenaeus vannamei culture ponds.关键词
凡纳滨对虾/水质因子/叶绿素a/线性回归主成分分析Key words
Litopenaeus vannamei/ water quality factor/ Chlorophyll-a/ multiple linear regression/ principal components分类
农业科技引用本文复制引用
韦璐,江敏,余根鼎,李世凯,戴习林,顾德平,胡伟国..凡纳滨对虾养殖塘叶绿素a与水质因子主成分多元线性回归分析[J].中国水产科学,2012,19(4):620-625,6.基金项目
上海市农委推广项目(沪农科推字(2008)第5-1号) （沪农科推字(2008）
上海市教委重点学科建设项目(J50701). （J50701）
