1. Introduction -- 2. Spatial considerations in aquatic ecosystem management -- 3. Temporal considerations in aquatic ecosystem management -- 4. River character -- 5. River behavior -- 6. River change -- 7. Geomorphic responses of rivers to human disturbance -- 8. Overview of the River Styles framework and practical considerations for its application -- 9. Stage one of the River Styles framework : catchment-wide baseline survey of river character and behavior -- 10. Stage two of the River Styles framework : catchment-framed assessment of river evolution and geomorphic condition -- 11. Stage three of the River Styles framework : prediction of likely future river condition based on analysis of recovery potential -- 12. Stage four of the Rivers Styles framework : implications for river management -- 13. Putting geomorphic principles into practice.