Statistical Study of Trace Elemental Concentrations in Major Types of Organisms

Statistical Study of Trace Elemental Concentrations in Major Types of Organisms from Typical Chinese Coastal Waters

Frequency distribution characteristics of trace elements Fe, Mn, Zn, Cu. Sr and Ba are studied for the marine organisms collected from typical Chinese coastal waters and compared with those of major elements Ca and Mg. Nearly all the distributions for trace elements in macroalgae, benthic molluscs, crustaceans, cephalopods and different tissues of fish ( muscle, liver and bone ) are found to show some degree of positive skewness, indicating a relatively large number of marine organisms with low concentrations for a particular element and only a few organisms with disproportionately high concentrations. Their distribution types are generally logarithmic normal distribution or nearly logarithmic normal distribution. Distribution of Ca is similar to that of trace elements, while Mg shows normal distribution. Average elemental concentrations of major types of organisms are calculated based on their frequency distributions.

?"pM^9~0

作 者： 郭卫东 胡明辉 石谦 杨逸萍  

作者单位：郭卫东(Department of Oceanography, Xiamen University, Xiamen 361005, Fujian, China;Key Laboratory for Marine Environmental Science of Ministry of Education, Xiamen 361005,Fujian, China)水利论文Pq"k-nC T/m
胡明辉,石谦,杨逸萍(Department of Oceanography, Xiamen University, Xiamen 361005, Fujian, China) 

刊 名：海洋通报(英文版) 

英文刊名：MARINE SCIENCE BULLETIN 

年，卷(期)：2004 6(1) 

分类号： 

关键词：Marine organisms   trace elements   frequency distribution   Chinese coastal waters  

机标关键词：normal distributiontrace elementsmarine organismsdistribution characteristicsfrequency distributionsChinese coastal waters 

基金项目：Special Doctoral Research Foundation of the Ministry of Education