The average species similarity was 0 . 68 between semi - quantitative ( kick sampling plus d - frame net sampling ) and quantitative samples in the same site , higher than that of 0 . 56 in the lotic water , 0 . 45 in the lentic water . 3 . no significant difference was found in metrics calculated from the data of quantitative and semi - quantitative samples in the same site respectively 从种类相似性看，同一样点半定量样本(踢网样加d形抄网样)与定量样本(索伯网样)之间的相似性最高，平均为0 . 68 ，高于急流栖境中定量样与半定量样的种类相似性0 . 56 ，以及静水-缓流栖境中，定量样与半定量样的种类相似性0 . 45 。
2.
In lotic water , there were no significant difference in number of species and individuals between quantitative ( surber net ) and semi - quantitative ( kick sampling ) samples , although more species and individuals were collected by semi - quantitative than quantitative sampling . in lentic water , the significant difference was existed in the number of species ( z = - 2 . 032 , p < 0 . 05 ) , but it showed no significant difference in individuals between quantitative and semi - quantitative ( d - frame net ) samples . 2 急流栖境中，半定量样本(踢网样)的个体数和种类数通常高于定量样本(索伯网样) ，但种类数无显著差异；静水-缓流栖境中，半定量样本( d形抄网样)的个体数和种类数一般也高于定量样本，且种类数有显著差异( z = - 2 . 032 ， p 0 . 05 ) 。
