Egg hatching rates of brown-marbled grouper, Epinephelus fuscoguttatus under different light wavelengths and intensities
This study was conducted to examine the egg hatching rates of brown-marbled grouper, Epinephelus fuscoguttatus under different light conditions in terms of light wavelengths and intensities. Results of two-way ANOVA showed significant difference for light wavelengths (p<0.05), while light inten...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universiti Malaya
2014
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/40903/ http://irep.iium.edu.my/40903/ http://irep.iium.edu.my/40903/1/tiger_egg_hatching.pdf |
| Summary: | This study was conducted to examine the egg hatching rates of brown-marbled grouper, Epinephelus
fuscoguttatus under different light conditions in terms of light wavelengths and intensities. Results of two-way
ANOVA showed significant difference for light wavelengths (p<0.05), while light intensities showed no significant
difference. There was no interaction between light wavelengths and intensities. Post-hoc Tukey test showed that
hatching rates under green light wavelength were significantly higher than white and yellow light wavelengths
(p<0.05). When white light 2.7 μmoles/m²/s was set as the control, the hatching ratio of the brown-marbled grouper
under green light 2.7 μmoles/m²/s was almost three times higher than the control. The lowest ratio of hatching rates
was observed under the white light 13.3 μmoles/m²/s with 70 percent lower ratio of hatching rates than the control
light. Eggs hatching under other light conditions mostly showed higher ratios than the control light. |
|---|