Cannibalistic behaviour of Sutchi catfish (Pangasianodon hypophthalmus) larvae under different light conditions

Ismail, Khairul Muttaqin and Mohammad Noor, Normawaty and Mukai, Yukinori (2017) Cannibalistic behaviour of Sutchi catfish (Pangasianodon hypophthalmus) larvae under different light conditions. In: 6th International Conference on Advancement in Science and Technology (iCAST 2017), 8th-9th August 2017, Kuantan, Pahang. (Unpublished)

	PDF - Presentation Restricted to Repository staff only Download (112kB) | Request a copy
	PDF - Supplemental Material Restricted to Repository staff only Download (126kB) | Request a copy

Abstract

Sutchi catfish Pangasianodon hypophthalmus larvae have high mortality rate in hatchery because of strong cannibalism. Many factors were influencing the cannibalism rate. One of them is light condition. In previous study, the sutchi catfish larvae show higher mortality in bright light condition than in dim light condition under white fluorescent lamp (Mukai, 2011). So far, there were no study conducted about the effect of different light wavelengths on the sutchi catfish larvae. In this study, the cannibalistic behaviours of sutchi catfish larvae was investigated under different light wavelengths (white, blue, green, yellow and red) and light intensities (0.0014, 0.014, 0.14 and 1.4 μmol m-2 s-1). Ten larvae (4-14 days old) were placed in a glass basin under different light conditions in a dark room. The behaviours of the larvae were recorded for 30 minutes after adaptation. The cannibalistic behaviours (biting, resting and swimming activity) of the larvae were analysed from the video recorded.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	6635/58299
Uncontrolled Keywords:	Sutchi catfish, Pangasianodon hypophthalmus, Cannibalism, Larval behaviour, 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 > Department of Marine Science
Depositing User:	Dr. Yukinori Mukai
Date Deposited:	11 Sep 2017 12:41
Last Modified:	11 Sep 2017 12:43
URI:	http://irep.iium.edu.my/id/eprint/58299

Actions (login required)

View Item