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Last modified
7/14/2009 5:02:32 PM
Creation date
5/24/2009 7:32:18 AM
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UCREFRP
UCREFRP Catalog Number
8026
Author
Berry, C., R. Bulkley, D. Osmundson and V. Rosen.
Title
Survival of Stocked Colorado Squawfish with Reference to Largemouth Bass Predation.
USFW Year
1985.
USFW - Doc Type
Logan, Utah.
Copyright Material
NO
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Table 17. Summary of results from the prey-size preference experiment. <br />Numbers indicate squawfish weight (grams) consumed by an individual <br />largemouth bass during a seven-day period. <br />' bass size small medium large <br />squawfish <br />' size (mm TL) 50-65 75-90 100-120 50-65 75-90 100-120 50-65 75-90 100-120 <br />week # 1 15.4 1o.6 0.0 15.1 10.9 27.5 9.4 17.2 40.9 <br />2 17,5 0.0, 0,0 9,8 10.4 0.0 - - - <br />3 18.1 0,0 0.0 12.4 15.2 16.2 19.5 8.2 0.0 <br />4 12.7 19.5 0.0 16.9 2.5 6.4 10.4 19.7 53.2 <br />5 17.6 5.9 0.0 12.5 31.3 0.0 4.1 14.0 42.8 <br />Total 81.3 35.9 0.0 66.8 70.3 50,1 43.3 59.1 136.9 <br />percent of <br />total eaten 69.3 30.7 0.0 35.7 37.6 26.8 18.1 24.7 57.2 <br />Table 18. Summary of results from the prey-size preference experiment.. <br />Numbers indicate percent of total weight of squawfish eaten by an indiv- <br />idual largemouth bass during a seven-day period. Percents are derived <br />from data in Table 17. <br />bass size small - medium large <br />squawfish <br />size (mm TL) 50-65 75-90 100-120 50-65 75-90 100-120 50-65 75-90 100-120 <br />week # 1 59.3 40.7 0.0 28.2 20.4 51.5 13.9 25.5 6o.6 <br />2 100.0 0.0 0.0 48.6 51,4 0.0 - - - <br />3 100.0 0.0 0.0 28.4 34.7 36.9 70.4 29.6 o. o <br />4 39.5 60.5 0.0 65.5 9.8 24.7 12.5 23.7 63.9 <br />5 75.1 24.9 o. o 28.6 71.4 0.0 6.7 23.0 70.3 <br />Mean percent 74.8 25.2 0.0 39.9 37.5 22.6 25.9 25.5 48.7 <br />22
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