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Ongoing Study at Hay Hollow Pond North Finds First Juvenile Yaqui Chub
Southwest Region, May 5, 2009
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Yaqui Chub.  Photo by William Radke, 6/2005, San Bernardino NWR, Cochise County, AZ
Yaqui Chub. Photo by William Radke, 6/2005, San Bernardino NWR, Cochise County, AZ - Photo Credit: n/a

The study was designed to monitor fish and vegetation response in new wetland habitats.  The pond was first stocked with Yaqui chub in May of 2007 and has had four supplemental stockings since then, the last in October of 2008.  Yaqui topminnow were also stocked into this pond.  The pond is trapped once a month following the established refuge fish monitoring protocol.  Trap depth, vegetation type and density, and fish species captured are recorded.  Until this May, no juvenile chub had been captured; only adults, and very few of them.  Yaqui topminnow proved to be much more prolific, with juvenile fish captured the second month after topminnow were stocked into the pond.  This data as well as the other data gathered from this study will provide the refuge with valuable information to help manage these rare fish.


Contact Info: Christopher Lohrengel, 520-364-2104 x.106, chris_lohrengel@fws.gov



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