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首页> 外文期刊>Environmental toxicology and chemistry >CAN BIOLOGICAL ASSESSMENTS DISCRIMINATE AMONG TYPES OF STRESS? A CASE STUDY FROM THE EASTERN CORN BELT PLAINS ECOREGION
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CAN BIOLOGICAL ASSESSMENTS DISCRIMINATE AMONG TYPES OF STRESS? A CASE STUDY FROM THE EASTERN CORN BELT PLAINS ECOREGION

机译:生物评估可以区分不同类型的压力吗?东部玉米带平原生态区的案例研究

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摘要

We investigated the feasibility of using the structure of fish and benthic macroinvertebrate communities to distinguish among major types of stressors(e.g., siltation, nutrient enrichment, and stream structural degradation)using spatially and temporally biological oxygen demand(BOD),total suspended solids, nitrogen, phosphorus, and components of the Qualitative Habitat Evaluation Index. The 42 response variables addressed fish and invertebrate community structure and included many of the component metrics Of the Index of Biological Integrity and the Invertebrate Community Index as well as variables specifically calculated for this Project.
机译:我们调查了利用鱼类和底栖大型无脊椎动物群落的结构,利用时空生物需氧量(BOD),总悬浮固体,氮来区分压力源的主要类型(例如淤积,营养富集和河流结构退化)的可行性。 ,磷和定性栖息地评估指数的组成部分。 42个响应变量涉及鱼类和无脊椎动物群落结构,包括生物完整性指数和无脊椎动物群落指数的许多组成指标以及为此项目专门计算的变量。

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