The optimum light condition for Sutchi catfish larval rearing

Ismail, Khairul Muttaqin and Rosli, Muhammad Khairulanwar and Tan, Nai Han and Mohammad Noor, Normawaty and Mukai, Yukinori (2019) The optimum light condition for Sutchi catfish larval rearing. In: Kuantan Research Day 2019 (KRD 2019), 23 October 2019, Office of Campus Director (OCD), Kuantan, Pahang. (Unpublished)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 the 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. The light condition was reported to influence the survival and growth of fish. Hence, this study was conducted to examine the optimum light condition in term of light wavelength and light intensity for sutchi catfish larval rearing. 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 PI showed a significant effect on the larvae. Light intensity of 1.40×10-3 µmol/m²/s was significantly higher than 1.40×10-1 µmol/m²/s intensity. Apart from that, there was a tendency for high SR, SGRTL and SGRBW under low light intensities (1.40×10-4 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 the optimum light condition for sutchi catfish larval rearing.

Item Type:	Conference or Workshop Item (Poster)
Additional Information:	6616/77782
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling > SH151 Aquaculture - Fish Culture
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Marine Science Kulliyyah of Science Kulliyyah of Science > Department of Biotechnology
Depositing User:	Dr. Yukinori Mukai
Date Deposited:	02 Jan 2020 10:42
Last Modified:	02 Jan 2020 10:42
URI:	http://irep.iium.edu.my/id/eprint/77782

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