Optimum light wavelength and light intensity for rearing juvenile African Catfish (Clarias gariepinus)

Sallehudin, Muhammad Firdaus and Yusoff, Nor Amira and Tan, Nai Han and Saad, Shahbudin and Mukai, Yukinori (2017) Optimum light wavelength and light intensity for rearing juvenile African Catfish (Clarias gariepinus). International Journal of Aquatic Science, 8 (2). pp. 107-112. ISSN 2008-8019

PDF - Published Version Restricted to Registered users only Download (1MB) | Request a copy

Abstract

The present study examines the optimum light wavelength and intensity for rearing African catfish (Clarias gariepinus) juveniles. For this purpose, African catfish juveniles (average total length: 26.0 ± 5.0 mm) were reared (20 fish/30 L) under five light colours (white, blue, green, yellow, and red) with three light intensities (1.40, 0.014, and 0.0014 μmoles/m²/s) in triplicate for 14 days. The survival rates and specific growth rates (SGRs) were then calculated. The results of the present study showed that the survival rates of African catfish juveniles were high under all light conditions with no significant differences among light wavelengths or light intensities (P < 0.05). These findings indicate that the survival rates of African catfish juveniles were unaffected either by light wavelengths or by light intensities. However, there were significant differences among light wavelengths for the SGRs, with yellow light resulting in the highest SGR. As for the effect of light intensities on fish growth rates, the results were insignificant. Thus, yellow light is recommended for rearing African catfish juveniles.

Item Type:	Article (Journal)
Additional Information:	5605/58226
Uncontrolled Keywords:	African catfish, Clarias gariepinus, survival rate, growth rate, light intensities, light wavelengths
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:	05 Sep 2017 14:44
Last Modified:	12 Jan 2018 14:52
URI:	http://irep.iium.edu.my/id/eprint/58226

Actions (login required)

View Item