7785

• UCREFRP Catalog Number: 7785
• Author: Thompson, J. M.
• Title: The Role of Size, Condition, and Lipid Content in the Overwinter Survival of Age-0 Colorado Squawfish.
• USFW Year: 1989.
• USFW - Doc Type: Colorado State University,
• Copyright Material: NO

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17

Table 4. Condition factors of age-O Colorado squawfish of
three initial sizes subjected to three feeding
regimes while being held under simulated winter
temperatures for various lengths of time.

============================================================

Fish Size, Feeding
Regime

Length of Exposure to
winter Temperatures

Day 0

Day 70

Day 140

Day 210

Small, pellet-
fed

.5261d
b
(.41-.61)
60c

.5217
(.46-.60)
28

.4861
(.44-.56)
18

.4423
(.33-.53)
57

Small, starved .5261 .4623
(.41-.61) (.41-.55)
60 14
Small, brine- .5261 .4618
shrimp-fed (.41-.61) (.40-.52)
60 33
Medium, pellet- .5731 d .4886 .4661 .4774
fed (.51-.67) (.41-.57) (.40-.58) (.27-.61)
60 27 24 72
Medium, starved .5731d .4503 .3702
(.51-.67) (.40-.54) (.28-.45)
60 19 12

Medium, brine-
shrimp-fed

.5731d
(.51-.67)
60

.4952
(.41-.60)
31

Large, pellet- .6948
fed (.53-.87)
60

.6045
(.50-.67)
15

.5728
(.50-.65)
12

.5554
(.48-.61)
30

Large, starved .6948
(.53-.87)
60

.6022
(.56-.68)
10

.5410
(.49-.56)
9

.4752
(.40-.55)
20

Large, brine-
shrimp-fede

.6948
(.53-.87)
60

dMean
bRange
cSample size
dDay 0 condition factors of medium fish cannot be compared to
condition factors of medium fish on days 70, 140, and 210.
eFish removed prior to day 210 due to Ichthyobodo infection.