The influence of light wavelength and intensity to the survival rates, growth rates and production index of Sutchi Catfish larvae

Ismail, Khairul Muttaqin and Rosli, Khairul Anwar and Tan, Nai Han and Mohammad Noor, Normawaty and Mukai, Yukinori (2019) The influence of light wavelength and intensity to the survival rates, growth rates and production index of Sutchi Catfish larvae. In: 2019 ASEAN-FEN 9th International Fisheries Symposium (IFS2019): A New Horizon in Fisheries and Aquaculture Through Education, Research and Innovation, 18 – 21 November 2019, Seri Pacific Hotel, Kuala Lumpur, Malaysia. (Unpublished)

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Abstract

Sutchi catfish Pangasianodon hypophthalmus (Sauvage, 1878) is one of the most important freshwater fish species cultured in Southeast Asia. Artificial seed production of sutchi catfish is very important in aquaculture industry. However, the larval survival rates were low when reared in the hatchery. Providing optimum rearing condition for sutchi catfish larvae in the hatchery can increase the seeds production. Light conditions was reported to influence the survival and growth of fish. Hence, this study was conducted to examine the optimum light conditions in term of light wavelength and light intensity for rearing of sutchi catfish larvae. The sutchi catfish larvae were reared under five different light wavelengths (white, blue, green, yellow and red lights) and four different light intensities (1.40 10-4 , 1.40 10-3 , 1.40 10-2 , and 1.40 10-1 µmol/m²/s). The results showed that, the survival rates (SR), growth rates (SGRTL and SGRBW) and Production Index (PI) were higher in red light than other wavelengths. For light intensity, only PImshown significant effect to the larvae. Light intensity of 1.40×10-3 µmoles/m²/s wasmsignificantly higher than 1.40×10-1 µmoles/m²/s intensity. Apart from that, there weremtendency for high SR, SGRTL and SGRBW under low light intensities (1.40 10-4m and 1.40 10-3 µmoles/m²/s) when compared to high light intensities (1.40 10-2, and 1.40 10-1 µmol/m²/s). Therefore, red light wavelength and low light intensities (1.40 10- 4 and 1.40 10-3 µmoles/m²/s) were recommended when rearing sutchi catfish larvae.

Item Type:	Conference or Workshop Item (Speech/Talk)
Additional Information:	6616/76467
Uncontrolled Keywords:	Sutchi catfish larvae, aquaculture, light wavelength, light intensity
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Biotechnology Kulliyyah of Science > Department of Marine Science
Depositing User:	Dr. Yukinori Mukai
Date Deposited:	29 Nov 2019 10:45
Last Modified:	29 Nov 2019 10:45
URI:	http://irep.iium.edu.my/id/eprint/76467

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