1202

• UCREFRP Catalog Number: 1202
• Author: Berry, C. R., Jr.
• Title: Effects of Cold Shock on Colorado Squawfish Larvae
• USFW Year: 1986.
• USFW - Doc Type: Final Report.
• Copyright Material: NO

10
Table 2. Mean length of 14-day-old and 40-day-old squawfish fry 25 days
after being subjected to abrupt (5 minutes) and gradual (240-300 minutes)
temperature decreases of 5, 10, 15 C. Standard deviation in parenthesis.
Fish Time Temperature Decrease (C) AIOVA
Age Year Intgr- n F P
(days) Val 0 5 10 15
19 1984 A 20 18.8(1.6) 17.5(1.6) 19.2(1.3) 17.9(1.5) 5.1 0.0032
G 20 18.8(1.3) 18.5(1.3) 19.7(1.7) 17.9(2.0) 4.3 0.0073
1985 A 10 11.9(1.8) 10.2(0.9) 10.5(0.9) 12.2(1.2) 6.2 0.002
G. 10 11.8(1.4) 11.5(1.7) 11.3(1.5) 11.3(1.3) 0.3 0.9
79 1984 A 20 27.5(2.5) 28.0(4.2) 27.7(2.5) 27.7(3.2) 0.1 0.9
G 20 29.2(3:16) 29.3(3.6) 28.6(4.6) 28.5(3:9) 3.4 0.219
1 A = Abrupt, G'= Gradual.