Laserfiche WebLink
<br />Willow Beach National Fish Hatchery in Arizona were also conducted as part of this <br /> <br />knowledge assessment. Telephone interviews were conducted with personnel from <br /> <br />locations that produce small numbers of razorback suckers (Hualapai Ponds, Lake Mead <br /> <br />Fish Hatchery, and l.W. Mumma Fish Hatchery) or facilities that formerly produced <br /> <br />razorback suckers but currently focus on other species (Wahweap Fish Hatchery, and <br /> <br />Achii Hanyo National Fish Hatchery). <br /> <br />Information from all of these sources is summarized to aid future researchers in <br /> <br />the design of more detailed studies on razorback sucker growth. Understanding the <br /> <br />factors that control razorback sucker growth will allow expanded fish-rearing capabilities <br /> <br />and aid in reaching management objectives for stocked fish. Preservation of genetic <br /> <br />resources for razorback suckers depends on captive rearing and stocking programs until <br /> <br />permanent solutions to factors that prevent wild recruitment can be found. <br /> <br />Summary of Facilities <br /> <br />There are over 50 .locations that have been used to rear razorback suckers (Table <br /> <br />1). These include both intensive culture facilities with raceways or circular tanks, as well <br /> <br />as production ponds, golf-course ponds and natural floodplain-wetlands. The majority of <br /> <br />razorback suckers that are stocked come from five major production facilities: Bubbling <br /> <br />Ponds State Fish Hatchery, Dexter National Fish Hatchery, The Grand Valley <br /> <br />Endangered Fish Facility, Ouray National Fish Hatchery, and the Willow Beach National <br /> <br />Fish Hatchery (Meuller 2006). Tables 2-3 outline the types offish holding facilities and <br /> <br />water quality conditions that exist at each of these main production locations. A brief <br /> <br />summary of procedures for rearing razorback suckers at each ofthese facilities follows. * <br /> <br />* These summaries are based on interviews conducted with hatchery personnel in July 2007 during site visits. This <br />information is provided only to give a brief overview of razorback grow-out procedures. Please verify accuracy of <br />specific information with individual hatchery managers. <br /> <br />6 <br />