Table 1: Mean (SE) spawning female sizes, reproductive data, and thiamine data from landlocked fall Chinook Salmon from Lake Oahe, South Dakota. Means with different letters across a row are significantly different (P < 0.05).
|
2000 |
2001 |
2002 |
2003 |
2005 |
N |
21 |
21 |
17 |
20 |
20 |
Length (mm) |
678 ± 13 y |
690 ± 44 y |
776 ± 55 z |
810 ± 6 z |
722 ± 15 y |
Weight (g) |
2,019 ± 143 x |
2,999 ± 152 y |
NA |
4,442 ± 141 z |
3,489 ± 334 y |
Egg Size (number/ml) |
6.9 ± 0.4 x |
4.6 ± 0.2 z |
5.1 ± 0.3 zy |
4.4 ± 0.1 z |
5.9 ± 0.1 y |
Number of Eggs |
2,011 ± 160 x |
2,374 ± 161 x |
4,067 ± 259 zy |
4,555 ± 151 z |
3,311 ± 261 y |
Survival to Eyeup (%) |
36.4 ± 6.5 z |
31.5 ± 8.9 z |
38.1 ± 6.8 z |
29.1 ± 4.7 z |
25.0 ± 5.3 z |
Survival to Hatch (%) |
27.9 ± 6.7 z |
27.4 ± 3.7 z |
35.4 ± 5.6 z |
25.8 ± 5.0 z |
20.7 ± 4.7 z |
Survival to Swim-up (%) |
27.7 ± 6.7 z |
27.2 ± 3.7 z |
35.2 ± 5.5 z |
25.3 ± 5.0 z |
17.6 ± 3.8 z |
Egg TPP1 (nmol/g) |
0.65 ± 0.05 z |
0.40 ± 0.05 zy |
0.40 ± 0.05 zy |
0.30 ± 0.05 y |
0.65 ± 0.05 z |
Egg TMP2 (nmol/g) |
0.55 ± 0.05 z |
0.50 ± 0.05 z |
0.65 ± 0.05 z |
0.40 ± 0.05 z |
0.45 ± 0.05 z |
Egg Free Thiamine (nmol/g) |
10.10 ± 1.25 x |
27.95 ± 2.15 z |
21.05 ± 0.90 y |
15.55 ± 1.60 yx |
12.55 ± 1.00 x |
Egg Total Thiamine (nmol/g) |
11.25 ± 1.25 x |
28.80 ± 2.20 z |
22.10 ± 3.60 y |
16.25 ± 1.65 yx |
13.60 ± 1.05 x |
Liver TPP1 (nmol/g) |
3.45 ± 0.40 zy |
4.30 ± 0.45 zy |
2.79 ± 0.25 yx |
4.00 ± 0.20 zy |
5.00 ± 3.90 z |
Liver TMP2 (nmol/g) |
1.95 ± 0.30 y |
3.10 ± 0.40 z |
1.15 ± 0.15 yx |
1.25 ± 0.05 yx |
0.82 ± 0.10 x |
Liver Free Thiamine (nmol/g) |
0.40 ± 0.05 yx |
1.30 ± 0.20 z |
0.80 ± 0.05 zy |
0.35 ± 0.05 yx |
0.25 ± 0.05 x |
Liver Total Thiamine (nmol/g) |
5.80 ± 0.60 y |
8.70 ± 0.90 z |
4.75 ± 0.35 y |
4.45 ± 0.55 y |
5.95 ± 0.75 y |
1TPP = thiamine pyrophosphate
2TMP = thiamine monophosphate.