USGS Scientific Investigations Report 2012–5017  - Geomorphic Setting, Aquatic Habitat, and Water-Quality Conditions of the Molalla River, Oregon, 2009–10 

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Scientific Investigations Report 2012–5017 

Prepared in cooperation with the Molalla River Improvement District 

Geomorphic Setting, Aquatic Habitat, and Water-Quality Conditions of the Molalla River, Oregon, 2009–10 

By Kurt D. Carpenter, Christiana R. Czuba, Christopher S. Magirl, Mathieu D. Marineau, Steve Sobieszczyk, Jonathan A. Czuba, and Mackenzie K. Keith

Contents

Conversion Factors and Datums 

Executive Summary 

Introduction 

Description of Molalla River Basin 

Geomorphology  

Synthesis of Geomorphic Analyses 

Streamflow, Water Quality, and Algal Conditions 

Synthesis of Water-Quality and Benthic Community Analyses 

Geomorphic and Water-Quality Factors Affecting Algae and River Food Webs 

Aquatic Habitat and Water-Quality Conditions for Fish 

Implications for Resource Management 

Potential Future Studies 

Acknowledgments 

References Cited 

Appendixes and Evaluation of Quality Assurance Data  

First posted February 29, 2012

Animation - Historical geomorphic changes in active channel (geomorphic reach 3)

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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