The Use of Ecological Risk Assessments in a Watershed Level Context

7/28/00


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Table of Contents

The Use of Ecological Risk Assessments in a Watershed Level Context

Man & Nature

Pollution Control

25 Year Reality Check

Why were goals not attained…?

Indian River Lagoon

Watershed Approach

Ecological Risk Assessment

Exposure & Effects Profiles

Multiple Stressors

Total Ecosystem Risk

Watershed Level Risk Assessment

WLRA incorporates ...

But …. Time … ??? Expense … ???

Multi-Tiered Process

Example

Tier 1 - Zinc Quotient Methodology

Tier 2 - Chloride Place-based Methodology

Tier 3 - Low flows & Channelization Site-specific Methodology

Tier 3 Site-specific Methodology

WLRA: Total Ecosystem Assessment

WLRA: Summary

Acknowledgments

Thank You !

Author:

Email: Thorneabbott@yahoo.com

Home Page: http://www.CoastalZone.com