Science & Technology

Linear Regression: EPT Relative Abundance vs. Percent Sands and Fines for Minnesota Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Quantile Regression: Chironomid richness vs. Metal Toxicity Units

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

CADDIS Volume 3. Examples and Applications: Galleries - Linear Regression: EPT Taxa Richness vs. Metal Toxicity Units for Colorado Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Quantile Regression: Non-insect Relative Abundance vs. Percent Sands and Fines for Minnesota Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Conditional Probability Analysis: EPT Taxa Richness < 18 vs. Turbidity in Oregon Coastal Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Quantile Regression: EPT Taxa Richness vs. Percent Sands and Fines for Minnesota Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Linear Regression: EPT Taxa Richness vs. Percent Sand and Fines for Minnesota Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Quantile Regression: EPT Relative Abundance vs. Percent Sands and Fines for Minnesota Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Linear Regression: Chironomid Richness vs. Metal Toxicity Units for Colorado Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Conditional Probability Analysis: Chlorophyll a > 30 vs. Total Phosphorus for Northeast Lakes

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Linear Regression: Number of Salmonids vs. Metal Toxicity Units

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Quantile Regression: EPT Taxa Richness vs. Metal Toxicity Units for Colorado Streams

This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.

Watershed Academy Webcast: EPA Releases First Ever National Wetland Condition Assessment

Presentation from June 16, 2016 webcast.

Federal Guidance Report No. 13: CD Supplement

Order a CD from EPA which contains PDFs and other supporting materials related to Federal Guidance Report No. 13, "Cancer Risk Coefficients for Environmental Exposure to Radionuclides."

Learn About Sources

This is the introductory page to the sources module.

Introduction to urbanization and its effects of streams, a summary of the urban stream syndrome,an overview of the effects of urbanization on biotic integrity, a summary of catchment vs. riparian urbanization vs. reach.

CADDIS Volume 2: Sources, Stressors and Responses

CADDIS Volume 2 landing page -- Learn more about common sources and stressors that can negatively affect biological condition in aquatic ecosystems.

Manipulation of Exposure at Other Sites

This page explains how to derive and evaluate evidence using studies from other locations that manipulate exposure.

Summary Tables of Types of Evidence

This page includes a summary table to various types of evidence, illustrations, explanations, and their supporting pages.

Symptoms

This page shows how to derive and evaluate evidence using symptoms.