9489

• UCREFRP Catalog Number: 9489
• Author: Mueller, G.
• Title: The Role of Stocking in the Reestablishment and Augmentation of Native Fish in the Lower Colorado river Mainstream ‎(1998-2002)‎.
• USFW Year: 1998-2
• USFW - Doc Type: 03-288,
• Copyright Material: NO

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Contents (concluded)

1.5 Estimate of flannelmouth sucker age distribution based on annuli read from vertebrae and

fin rays .. ................................................... ..... .................. ...................... ............................................ 12

Page

1.6 Growth rates (mm/month) of flannelmouth sucker (n = 57) recaptured after a minimum of 9
months after release from the lower Colorado River, Arizona-Nevada, between 1999 and 2002

(bars represent range)........................ ................................ ... .......... ................................................... 12

1.7 Specific locations where flannelmouth suckers were observed spawning and their larvae found..... 14

1.8 The occurrence and timing of sexually ripe flannelmouth suckers captured in the lower Colorado

River, Arizona-Nevada ............................ ........................ ....... ........................................ .................. 14

1.9 Locations where razorback suckers are suspected of spawning from the capture of sexually ripe
adults and presence of larval suckers. ...............................................................................................17

2.1 An output map from Arc View ranking the most suitable areas of the Colorado River between
Davis and Parker Dams stock razorback suckers. The program covers the entire lower

Colorado River. . ..... . .. . ........ .......... ... .. . ...... ..... .... ... .. .... .. . .. . .. .., ... ... ...... '" .., ... . .. . . ... 23

5.1 Graph showing the relative abundance of razorback and flannelmouth suckers in the upper and
lower 40-lan reach of river found between Davis Dam and Lake Havasu, 1999-2002....................26

5.2 Summary graph showing the relative abundance of suspected nonnative predators in the
upper and lower 40-lan of river found between Davis Dam and Lake Havasu, 1999-2002.............27

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