Field Notes
U.S. Fish & Wildlife Service
Field Notes Entry   
Cottonwood Spring Gila topminnow refuge population established
Southwest Region, August 2, 2006
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About 22 endangered Gila topminnow were captured from both Cottonwood spring and Sonoita Creek and placed into an aquarium at the AGFD office in Tucson.  One pregnant female later gave birth to about 15-20 young.  We plan on augmenting this captive population once or twice before winter, and we hope to use at least one back yard pond for a larger refuge population.   Though the genetics of Cottonwood Springs and Monkey Springs topminnow are not a match, Hedrick et al. included Cottonwood Springs fish in the Monkey Springs ESU.  Before this action, no Cottonwood Spring Gila topminnow were in captivity.  This was an important action for this small and not entirely protected population.

Contact Info: Martin Valdez, 505-248-6599, martin_valdez@fws.gov
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