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<br />MUTH AND RUPPERT
<br />carious status of this species, we recommend that
<br />electrofishing over active razorback sucker spawn-
<br />ing areas be carefully evaluated.
<br />Acknowledgments
<br />This study was funded by the Recovery Imple-
<br />mentation Program for Endangered Fish Species
<br />in the Upper Colorado River Basin. The recovery
<br />program is a joint effort of the U.S. Fish and Wild-
<br />life Service; U.S. Bureau of Reclamation; Western
<br />Area Power Administration; states of Colorado,
<br />Utah, and Wyoming; upper basin water users; en-
<br />vironmental organizations; and the Colorado River
<br />Energy Distributors Association. Research was
<br />conducted under Federal Endangered Species Per-
<br />mit PRT-704930 (held by F. Pfeifer, U.S. Fish and
<br />Wildlife Service) and with the approval of Colo-
<br />rado State University Animal Care and Use Com-
<br />mittee. We thank R. Hamman and B. Jensen for
<br />providing adult razorback suckers and B. Comp-
<br />ton, K. Holley, C. McAda, S. Meismer, and L.
<br />Zeigenfuss for their assistance. We give special
<br />thanks to M. Baker and F. Pfeifer whose efforts
<br />contributed greatly to the success of this study. D.
<br />Snyder and N. Sharber provided technical advice.
<br />Comments by T. Burke, T. Chart, L. Lentsch, C.
<br />McAda, D. Snyder, H. Tyus, and an anonymous
<br />reviewer improved the manuscript. This paper is
<br />contribution 83 of the Colorado State University
<br />Larval Fish Laboratory.
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