Table 6.
Measurements of x-ray photographed swim bladder and curved vertebral column of (Epinephelus bruneus), red spotted grouper (E. akaara) and seven-banded grouper (E. septemfasciatus)*
| X-ray parts | Measurements | E. bruneus | E. akaara | E. septemfasciatus |
|---|---|---|---|---|
| Swim bladder | Extent (cm2) | 25.2±1.78c | 17.7±1.41b | 13.2±2.15a |
| Maximum height/SL (%) | 10.7±0.85b | 7.3±0.93a | 6.6±1.19a | |
| Maximum width/SL (%) | 15.6±1.25a | 15.2±1.31a | 15.5±1.28a | |
| Vertebral column | Dotted line/SL (%) | 8.2±0.81b | 5.5±1.17a | 5.2±0.94a |
*
The values are means ± SD (n=30) of triplicate groups. Data were analyzed using one-way ANOVA on data transformed to the arcsine of the square root. Different capital letters on the values indicate statistical significance among meristic characteristics (P < 0.05). Refer to the Figs. 4. Different small letters on ‘a’ means the smallest value, ‘b’ means larger than ‘a’ value and ‘c’ means the largest value among 3 species data.