Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Gila National Forest Stream Temperature and Intermittency Monitoring Network for Species of Special Interest


April 2016 - December 2018


Management of imperiled fishes of greatest conservation need in the arid Southwest requires an understanding of their habitat. The importance of stream temperature is well recognized especially in light of a changing climate where there will be a major shift in temperature and precipitation in the 21st century. To this end, the 2016 WRRI Student Grant funded deployment of a stream temperature and intermittency-monitoring network in Willow Creek, Gila National Forest, New Mexico. Willow Creek is home to a population of Gila trout (Oncorhynchus gilae) that were once extirpated in the 2012 Whitewater-Baldy Wildfire. Preliminary data Willow Creek revealed a maximum seven-day weekly average temperature of 15.6°C. The maximum daily range increased from 11.28°C to 20.87°C. The maximum 2-hour average was 20.85°C. From the literature, the 7-day chronic sub-lethal temperature for Gila trout is 28.25°C. Thus, these temperatures throughout Willow Creek were not an immediate threat to Gila trout persistence in Willow Creek. Temperature data continues to be collected through the summer months when lowest flows occur. The implementation of this monitoring network will allow for further data collection and analysis of Willow Creek as a long-term recovery stream.

Research Products and Activities


  • Wallin, T. Parameters affecting success of Gila trout recovery streams: An in depth analysis of habitat and and community factors on the productivity of Gila trout populations. Master of Science, New Mexico State University.

Current Staff

Federal Staff: 95

Masters Students: 238

Phd Students: 144

Post Docs: 54

University Staff: 239

5 Year Summary

Students graduated: 673

Scientific Publications: 1905

Presentations: 4236



Funding Agencies

  • New Mexico Water Resources Research Institute


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey