Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
Home | Intranet | Digital Measures | Help

The Role of Riparian Vegetation and Instream Habitat on Fish Communities in Intermediate-Sized Arizona Rivers


June 2016 - December 2018


The native fish populations of the southwest United States are highly endangered and drastically declining due to multiple anthropogenic stressors. Physical habitat has been defined through habitat suitability criteria (HSC) for these vulnerable populations yet has been primarily limited to depth, flow, and substrate. The relationship between riparian vegetation and instream habitat on fish communities in the arid southwest United States is uncertain. The relationship needs to be assessed in order to implement management practices to conserve fish populations of interest. Four streams within central Arizona (Verde River, Blue River, San Francisco River, Tonto Creek) have been selected based on high priority. Prepositioned areal electrofishing devices (PAEDs) will be used to sample fishes in randomly selected sites within each stream. Overhead canopy will be measured using hemispherical photography within each site. Other aspects of the riparian vegetation such as length, width, and percent type with be assessed using ArcGIS. Relationships examined will include various components of the riparian community with common native and nonnative fish species presence, and components of the riparian community with stream channel mesohabitat type (e.g., pool, run, riffle). Field work on this project will commence spring, 2017.


Current Staff

Federal Staff: 101

Masters Students: 235

Phd Students: 161

Post Docs: 57

University Staff: 261

5 Year Summary

Students graduated: 685

Scientific Publications: 1884

Presentations: 4375



Funding Agencies

  • USGS


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey