The species composition, biological characteristics and seasonal variation of nekton were analyzed by principal component analysis, regression analysis and hierarchical cluster analysis.
The species composition, biological characteristics and seasonal variation of nekton were analyzed by principal component analysis, regression analysis and hierarchical cluster analysis.
采用主成份分析、回归分析和聚类分析等统计学方法分析游泳生物的组成、生物学及季节变化等特征。