Date of Award

6-2006

Type

Thesis

Major

Earth and Space Science - Environmental Science Track

Department

Earth & Space Science

First Advisor

James A. Gore

Abstract

Using an ecoregional approach, multimetric indices were developed to describe stream condition in each geographically distinct region of Georgia. Collected from predetermined reference and impaired condition streams, macroinvertebrate data were used to develop multimetric indices. Multimetric indices identified a range of stream conditions, as well as, the overall health of aquatic ecosystems. Based on multimetric indices, the Multimetric Rating System grouped streams according to overall stream condition. The Multimetric Rating System used multiple indices to describe various facets of stream condition. Therefore, it may be concluded that the Multimetric Rating System is a robust water management tool that may be used to evaluate stream condition, determine water management decisions, and describe water quality criteria.

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