Western North American Naturalist Volume 64 Number 3 Article 3 8-27-2004 Distribution and abundance of pelagic fish in Lake Powell, Utah, and Lake Mead, Arizona–Nevada Gordon A. Mueller U.S. Geological Survey, Denver, Coloardo Michael J. Horn United States Bureau of Reclamation, Denver, Colorado Follow this and additional works at: https://scholarsarchive.byu.edu/wnan Recommended Citation Mueller, Gordon A. and Horn, Michael J. (2004) "Distribution and abundance of pelagic fish in Lake Powell, Utah, and Lake Mead, Arizona–Nevada," Western North American Naturalist: Vol. 64 : No. 3 , Article 3. Available at: https://scholarsarchive.byu.edu/wnan/vol64/iss3/3 This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Western North American Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact
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[email protected]. Western North American Naturalist 64(3), © 2004, pp. 306–311 DISTRIBUTION AND ABUNDANCE OF PELAGIC FISH IN LAKE POWELL, UTAH, AND LAKE MEAD, ARIZONA-NEVADA Gordon A. Mueller1 and Michael J. Horn2 ABSTRACT.—Pelagic fish communities (waters with depths >20 m) of Lakes Powell and Mead were examined quar- terly from 1995 to1998 using vertical gill nets and a scientific echosounder. Nets captured a total of 449 fish consisting of striped bass (57%/45% [Lake Powell/Lake Mead]), threadfin shad (24%/50%), common carp (15%/4%), walleye (3%), channel catfish (2%), and rainbow trout (<1%). Each reservoir contained concentrations of pelagic species separated by expanses of habitat with few fish (<10 kg ⋅ ha–1).