Middle Rio Grande

The Middle Rio Grande Endangered Species Collaborative Program (MRGESCP or Collaborative Program) is a partnership of 17 signatory entities that support actions in the Middle Rio Grande aimed at protecting and recovering five federally listed species with a focus on science and adaptive management.

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Our Goals

  • Establish and maintain a self-sustaining population of endangered Rio Grande Silvery Minnow distributed throughout the Middle Rio Grande.

  • Maintain and protect the Middle Rio Grande recovery unit goals for endangered Southwestern Willow Flycatcher.

  • Maintain and protect suitable threatened Yellow-Billed Cuckoo habitat in the Middle Rio Grande.

  • Establish and maintain a self-sustaining endangered New Mexico Meadow Jumping Mouse population in the Middle Rio Grande.

  • Maintain and protect the threatened Pecos Sunflower in the Middle Rio Grande.

  • Avoid the future listing or up-listing of species in the MRGESCP area.

  • Manage available water to meet the needs of endangered species and their habitat.



We are saddened to announce that Mike Hatch passed away on May 25th 2024 following a long illness. 

He was a cherished friend and valued colleague. His friends and colleagues all have stories of working with Mike. His intellect combined with a quick wit and calm demeanor made for good conversation and company. He was tireless in the field. He enjoyed discussing fish biology and ecology.

Mike was a pioneer in New Mexico fisheries with considerable work on the Rio Grande. He co-authored ‘The Fishes of New Mexico’ with Jim and Mary Sublette in 1990. After retiring from New Mexico Department of Game and Fish, he worked another 20+ years with several organizations, including SWCA Environmental Consultants, to explore the ecology of the Rio Grande Silvery Minnow. His most recent contribution to science was earning a doctorate at New Mexico State University collaborating with David Cowley to develop a Rio Grande Silvery Minnow population model. 

Mike will be missed by everyone who knew him.

We are Seeking Five New Science and Adaptive Management Committee Members (SAMC)

...To join a team of experts who support the Collaborative Program by ensuring that riparian and aquatic ecosystem management in the Middle Rio Grande of New Mexico is informed by current and sound scientific information.

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How to Engage with the Collaborative Program


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