Contents
Abstract
Introduction
Purpose and Scope
Description of Study Area
Intensively Studied Streams
Aquatic Species of Interest
Acknowledgments
Habitat Selection Models
Definitions of Terms Used in this Report
Previous Instream Flow Studies in Hawaii
Stream Habitat and Macrofauna Data Collection
Intensively Studied Streams
Transects
Macrohabitat
Microhabitat and Macrofauna Abundance
Stream Water Temperature
Field Methods
Results and Discussion of Temperature Measurements
Hydrologic Conditions at Time of Study
Stream Reconnaissance Surveys on Other st
Numerical Habitat Modeling of Intensively Studied Streams
Water Depth and Stage-Discharge Relations
Velocity Estimation
Estimation of Usable Habitat Area
Estimation of Habitat in Intensively Studied Streams under Diverted and Natural Conditions
Habitat in Individual Reaches
Generalized Relation Between Habitat Availability and Streamflow
Estimation of Habitat in Other Streams under Diverted and Natural Conditions
Guidelines for Using Study Results
Needs for Additional Data
Summary and Conclusions
References Cited
Appendix A: Data from Study Area Stream Reconnaissance
Appendix B: Determination of Stage-Discharge Relations for Individual Stream Pools and Runs
Appendix C: Development and Testing of Species Habitat Suitability Criteria