溪流底栖动物定量与半定量采样法比较研究

被引：8

作者：

王备新

杨莲芳

机构：

[1] 南京农业大学昆虫系

来源：

应用与环境生物学报 | 2006年 / 05期

关键词：

采样方法; 底栖动物; 溪流; 定量和半定量采样法;

D O I：

暂无

中图分类号：

Q958.8 [水生动物学];

学科分类号：

摘要：

溪流底栖动物定量和半定量采样法在个体数、物种数、物种相似性及生物指数方面的比较研究表明:(1)急流生境中,半定量样(踢网)的个体和物种数高于定量样(索伯网);静水-缓流生境中,半定量样(D形网)的个体和物种数一般高于定量样,且物种数有显著差异(z=-2.032,P<0.05).(2)同一样点半定量样(踢网加D形网)与定量样之间的物种相似性(平均为0.68)高于急流生境(0.56)和静水-缓流生境(0.45).(3)同一样点半定量样和定量样单独计算的生物指数值之间无显著差异.建议在应用溪流底栖动物开展水质生物评价时,可用半定量采样法完成野外采样.图4表1参8

引用

页码：719 / 721

页数：3

共 7 条

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