Table 3. Skin color indices (L*, a*, b*) of different body regions (dorsal, ventral, and caudal fin) in giant trevally (Caranx ignobilis) juveniles reared under different tank colors

Parameters Treatments
White Blue Red Yellow Dark grey
Dorsal region
 L* 81.71 ± 1.42c 75.88 ± 1.23b 74.69 ± 1.18b 80.86 ± 1.49c 66.53 ± 1.82a
 a* 1.95 ± 0.09a 2.96 ± 0.08b 3.25 ± 0.06c 1.84 ± 0.05a 3.45 ± 0.12c
 b* 7.43 ± 0.53a 11.04 ± 0.17c 12.20 ± 0.28c 11.43 ± 0.47c 9.72 ± 0.43b
Ventral region
 L* 94.02 ± 1.15c 87.06 ± 1.46b 84.49 ± 1.70ab 92.10 ± 1.01c 81.06 ± 1.70a
 a* 1.21 ± 0.03d 0.80 ± 0.02b 0.82 ± 0.03b 0.05 ± 0.01a 0.98 ± 0.04c
 b* 6.13 ± 0.19a 7.97 ± 0.16bc 8.81 ± 0.36c 8.12 ± 0.27bc 7.45 ± 0.26b
Caudal region
 L* 74.64 ± 0.92b 57.32 ± 1.73a 55.45 ± 1.04a 73.68 ± 1.16b 54.34 ± 1.53a
 a* 1.45 ± 0.04b 1.45 ± 0.05b 1.74 ± 0.04c 0.72 ± 0.06a 1.93 ± 0.13c
 b* 5.66 ± 0.43a 8.17 ± 0.36b 9.24 ± 0.41b 13.25 ± 0.80c 6.33 ± 0.49a
Data represent mean values ± SE (n = 3).
Means with different superscripts in the same row differ significantly (p < 0.05).
L*, indicates lightness; a*, red-green chromaticity; b*, yellow-blue chromaticity.