9592

• UCREFRP Catalog Number: 9592
• Author: Mueller, G. A., J. Carpenter and P. C. Marsh.
• Title: Cibola High Levee Pond Annual Report 2004.
• USFW Year: 2004.
• USFW - Doc Type: \
• Copyright Material: NO

Table 1. Potential predators used in chronological order in razorback larvae trials, 2004. Sample
size for predator species is total number used in experiment. All experiments used 4 predators
per tank, except crayfish had 2 predators per tank.
Predator Predator Predator Predator Razorback
species size, mm biomass, g gape, mm size, mm * Trial Origin of
(n) (range) (x :!: SE) (x :!: SE) (x :!: SE) dates predators
Razorback sucker egg predation
Bullfrog 84 - 116 10.0 i: 0.4 4.5 i: 0.1 3.2i:0.2 15-18 CHLP and Achii
tadpole March Hanyo
(24)
Crayfish 26.3 - 40.6 7.7 i: 1.1 3.2i:0.l 17-18 CHLP
(12) ( carapace March
length)
Razorback sucker larvae predation
Bullfrog 78 - 119 10.5 i: 0.4 3.2i:0.l 11.5 i: 0.1 19-24 CHLP and Achii
tadpole March Hanyo
(28) (2 trials)
Threadfm 93 - 145 12.2 i: 1.2 7.8 i: 0.4 12.6 i: 0.2 25-26 Emerald Cove
shad March golf course pond,
(20) Parker, AZ
Common 58 - 75 2.8 i: 0.1 4.1 i: 0.1 14.2 i: 0.4 26-27 Osage hatchery,
carp March AK
(24)
Green 45 - 62 2.1 i: 0.1 3.9 i: 0.1 13.2 i: 0.5 27-28 Emerald Cove
sunfish March golf course pond,
(20) Parker, AZ
Channel 60 - 86 2.7 i: 0.1 4.5 i: 0.1 14.4 i: 0.4 28-29 Osage hatchery,
catfish March AK
(20)
Fathead 45 - 65 1.3i:0.l 2.6 i: 0.1 14.2 i: 0.2 29-30 Osage hatchery,
minnow March AK
(20)
* Razorback size: diameter for eggs and total length for larvae

15