Fig. 1. Rainfall, streamlines, impoundments, and flow barriers in the Hunter catchment. The UHRRI is the Upper Hunter River Rehabilitation Initiative. Rainfall data were sourced from the NSW Department of Land and Water Conservation (DLWC 2000). The extents of unregulated, controlled, and regulated flow as well as the locations of flow barriers were sourced from Ryder et al. (2008b). High, medium, and low priority refers to the priority for removal of flow barriers to improve fish communities.