7145

• UCREFRP Catalog Number: 7145
• Author: Inslee, T. D.
• Title: Spawning of Razorback Suckers
• USFW Year: 1981.
• Copyright Material: NO

100
M
E
A
N SO
N
U
M
a 60
E
R
P
E 40
R
S
M 20
P
L
E
0
200
M
E
A
N 160
N
U
M
8 120
E
R
E 60
R
S
M 40
P
L
E
0
26
M
E
A
N 20
N
U
8 16
E
R
P
E 10
R
S
A
M 6
P
L
E
FATHEAD MINNOW
LARVAE
1986 1987 1986 1989
RED SHINER
LARVAE
1988 1987 1988 1989
SAND SHINER
LARVAE
ri188 1987 Im 1989
M 1600
E
A
N
U 1200
M
B
E
R
P 800
R
1
0 400
0
S
0
M 0
M 2000
E
A
N
N 1600
U
M
e
ER 1200
P
R 800
1
0
0 400
8
0
M 0
M 260
E
A
N
N 200
U
M
E 160
R
P
R 100
1
0
0 60
8
0
M 0
FATHEAD MINNOW
_._._._._......._........ ................ _......_........_..__.__.._....._
POST-LARVAE
1988 1987 1988 1989
RED SHINER
POST-LARVAE
1988 1987 1988 1989
SAND SHINER
POST-LARVAE
1988 1987 1988 1989
Figure 2. Relative catch-per-effort for three introduced minnow species
in the 18-mile reach of the Colorado River near Grand Junction, Colorado,
1986-1989. Larval fishes include only specimens < 21 mm long; post-larval
fishes are juveniles and adults.
14