Table 1: Mean (SE) coefficients of variation for ages estimated from smallmouth bass and walleye otoliths using a novel
otolith illumination device and an alternative method. Analyses were stratified by species and reader. Results were considered significant if
P < 0.10.
|
Otolith illumination device |
Alternative method |
t-statistic |
df |
P |
Smallmouth bass |
|
|
|
|
|
|
|
|
|
|
|
Reader 1 |
8.79 (1.64) |
8.19 (1.42) |
0.17 |
92 |
0.86 |
|
|
|
|
|
|
Reader 2 |
10.87 (1.18) |
12.05 (1.74) |
-0.17 |
91 |
0.86 |
|
|
|
|
|
|
Between |
18.94 (1.32) |
18.53 (1.98) |
0.21 |
96 |
0.83 |
|
|
|
|
|
|
Walleye |
|
|
|
|
|
|
|
|
|
|
|
Reader 1 |
12.22 (1.64) |
16.88 (1.81) |
-2.41 |
92 |
0.02 |
|
|
|
|
|
|
Reader 2 |
16.24 (1.71) |
16.27 (2.05) |
0.13 |
93 |
0.89 |
|
|
|
|
|
|
Between |
22.86 (1.52) |
25.48 (1.95) |
-1.87 |
96 |
0.06 |