Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae

The sutchi catfish Pangasianodon hypophthalmus is an important species for aquaculture in Southeast Asia. However, larvae typically have low survival rates due to their predilection for cannibalism during rearing. This study investigated larval feeding behavior and rearing conditions. The former exp...

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Main Author:	Mukai, Yukinori
Format:	Article
Language:	English
Published:	Springer Tokyo 2011
Subjects:	QL Zoology SH Aquaculture. Fisheries. Angling
Online Access:	http://irep.iium.edu.my/2003/ http://irep.iium.edu.my/2003/ http://irep.iium.edu.my/2003/ http://irep.iium.edu.my/2003/1/remarkably_high_survival_rates_under_dim_light_conditions.pdf

id	iium-2003
recordtype	eprints
spelling	iium-20032011-09-29T03:13:10Z http://irep.iium.edu.my/2003/ Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae Mukai, Yukinori QL Zoology SH Aquaculture. Fisheries. Angling The sutchi catfish Pangasianodon hypophthalmus is an important species for aquaculture in Southeast Asia. However, larvae typically have low survival rates due to their predilection for cannibalism during rearing. This study investigated larval feeding behavior and rearing conditions. The former experiments were performed to elucidate the role of sensory organs in feeding, and the latter experiments examined the effect of dim light on larval rearing and survival rates. Neither lighting conditions (light and dark) nor blocking of free neuromasts by streptomycin had significant effects on feeding behavior. Therefore, the feeding behavior of sutchi catfish larvae most likely depends on chemosensing rather than visual sensing. In the later experiments, larval rearing at 0.1 l× yielded significantly higher survival rates than other lighting conditions (0.00, 1, 10, 100 l×). Survival in the 0.1 l× group was almost three times higher than in the 100 l× group. Moreover, larvae reared under 0.1 l× showed steady growth. Therefore, it is concluded that 0.1 l× is the optimum light intensity for sutchi catfish larval rearing. Springer Tokyo 2011 Article PeerReviewed application/pdf en http://irep.iium.edu.my/2003/1/remarkably_high_survival_rates_under_dim_light_conditions.pdf Mukai, Yukinori (2011) Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae. Fisheries Science, 77 (1). pp. 107-111. ISSN 0919-9268 (P), 1444-2906 (O) http://www.springerlink.com/content/121270/?p=cb1a0cc7d6714fe18ecbaba9b1fa23a3&pi=0 10.1007/s12562-010-0304-9
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QL Zoology SH Aquaculture. Fisheries. Angling
spellingShingle	QL Zoology SH Aquaculture. Fisheries. Angling Mukai, Yukinori Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae
description	The sutchi catfish Pangasianodon hypophthalmus is an important species for aquaculture in Southeast Asia. However, larvae typically have low survival rates due to their predilection for cannibalism during rearing. This study investigated larval feeding behavior and rearing conditions. The former experiments were performed to elucidate the role of sensory organs in feeding, and the latter experiments examined the effect of dim light on larval rearing and survival rates. Neither lighting conditions (light and dark) nor blocking of free neuromasts by streptomycin had significant effects on feeding behavior. Therefore, the feeding behavior of sutchi catfish larvae most likely depends on chemosensing rather than visual sensing. In the later experiments, larval rearing at 0.1 l× yielded significantly higher survival rates than other lighting conditions (0.00, 1, 10, 100 l×). Survival in the 0.1 l× group was almost three times higher than in the 100 l× group. Moreover, larvae reared under 0.1 l× showed steady growth. Therefore, it is concluded that 0.1 l× is the optimum light intensity for sutchi catfish larval rearing.
format	Article
author	Mukai, Yukinori
author_facet	Mukai, Yukinori
author_sort	Mukai, Yukinori
title	Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae
title_short	Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae
title_full	Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae
title_fullStr	Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae
title_full_unstemmed	Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae
title_sort	remarkably high survival rates under dim light conditions in sutchi catfish pangasianodon hypophthalmus larvae
publisher	Springer Tokyo
publishDate	2011
url	http://irep.iium.edu.my/2003/ http://irep.iium.edu.my/2003/ http://irep.iium.edu.my/2003/ http://irep.iium.edu.my/2003/1/remarkably_high_survival_rates_under_dim_light_conditions.pdf
first_indexed	2023-09-18T20:09:32Z
last_indexed	2023-09-18T20:09:32Z
_version_	1777407384130420736

Remarkably high survival rates under dim light conditions in sutchi catfish Pangasianodon hypophthalmus larvae

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