Egg hatching rates of brown-marbled grouper, Epinephelus fuscoguttatus under different light wavelengths and intensities

Mohammad Seth, Siti Nasihin and Nai, Han Tan and Rosli, Muhammad Khairulanwar and Saad, Shahbudin and Mohammad Noor, Normawaty and Mukai, Yukinori (2014) Egg hatching rates of brown-marbled grouper, Epinephelus fuscoguttatus under different light wavelengths and intensities. Malaysian Journal of Science, 33 (2). pp. 40-44. ISSN 1394-3065

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Abstract

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.

Item Type:	Article (Journal)
Additional Information:	5605/40903
Uncontrolled Keywords:	Brown-marbled grouper, Epinephelus fuscoguttatus, light wavelengths, light intensities, egg hatching rates)
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Marine Science
Depositing User:	Dr. Yukinori Mukai
Date Deposited:	27 Jan 2015 11:10
Last Modified:	24 May 2018 11:35
URI:	http://irep.iium.edu.my/id/eprint/40903

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