Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus
Abstract Larvae of the sutchi catfish Pangasianodon hypophthalmus hatch with morphologically immature features, but sensory organs develop rapidly as the fish grow. By 1 day old, yolk-sac larvae showed notochord flexion, and by 2 days old larvae were observed to have consumed a large part of th...
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| Language: | English |
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Springer Tokyo
2010
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| Online Access: | http://irep.iium.edu.my/2093/ http://irep.iium.edu.my/2093/ http://irep.iium.edu.my/2093/ http://irep.iium.edu.my/2093/1/2010_fisheries_science_sensory_organs.pdf |
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iium-20932011-11-09T05:05:43Z http://irep.iium.edu.my/2093/ Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus Mukai, Yukinori Tuzan, Audrey Daning Muhamad Shaleh, Sitti Raehanah Manjaji-Matsumoto, Bernardette Mabel QL Zoology SH Aquaculture. Fisheries. Angling Abstract Larvae of the sutchi catfish Pangasianodon hypophthalmus hatch with morphologically immature features, but sensory organs develop rapidly as the fish grow. By 1 day old, yolk-sac larvae showed notochord flexion, and by 2 days old larvae were observed to have consumed a large part of the yolk sac. At this stage, larvae had welldeveloped eyes, olfactory organs with ciliated receptor cells, inner ears with semicircular canals, and numerous taste buds, and they commenced ingestion of rotifers, Artemia nauplii, and artificial compound feed. Two-dayold larvae had many free neuromasts on the surface of the head and flanks and clearly showed rheotaxis. By 20 days old, free neuromasts in postflexion larvae had sunk under the skin. At this later stage, larvae swam against a water current and schooled along the side of the fish tank. Rapid development of sensory organs and notochord flexion would be an adaptation for survival in conditions of flowing water, as in the Mekong River. In this study, we show that development of the lateral line in the postflexion stage seems to be closely related to larval behavior, suggesting that these developments could be essential for sutchi catfish larvae survival. Springer Tokyo 2010 Article PeerReviewed application/pdf en http://irep.iium.edu.my/2093/1/2010_fisheries_science_sensory_organs.pdf Mukai, Yukinori and Tuzan, Audrey Daning and Muhamad Shaleh, Sitti Raehanah and Manjaji-Matsumoto, Bernardette Mabel (2010) Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus. Fisheries Science, 76 (6). pp. 921-930. ISSN 0919-9268 (P), 1444-2906 (O) http://www.springerlink.com/content/36l5602h1616x2k8/fulltext.pdf 10.1007/s12562-010-0290-y |
| 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 Tuzan, Audrey Daning Muhamad Shaleh, Sitti Raehanah Manjaji-Matsumoto, Bernardette Mabel Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus |
| description |
Abstract Larvae of the sutchi catfish Pangasianodon
hypophthalmus hatch with morphologically immature features,
but sensory organs develop rapidly as the fish grow.
By 1 day old, yolk-sac larvae showed notochord flexion,
and by 2 days old larvae were observed to have consumed
a large part of the yolk sac. At this stage, larvae had welldeveloped eyes, olfactory organs with ciliated receptor
cells, inner ears with semicircular canals, and numerous
taste buds, and they commenced ingestion of rotifers,
Artemia nauplii, and artificial compound feed. Two-dayold
larvae had many free neuromasts on the surface of the
head and flanks and clearly showed rheotaxis. By 20 days
old, free neuromasts in postflexion larvae had sunk under
the skin. At this later stage, larvae swam against a water
current and schooled along the side of the fish tank. Rapid
development of sensory organs and notochord flexion
would be an adaptation for survival in conditions of
flowing water, as in the Mekong River. In this study, we
show that development of the lateral line in the postflexion
stage seems to be closely related to larval behavior,
suggesting that these developments could be essential for
sutchi catfish larvae survival. |
| format |
Article |
| author |
Mukai, Yukinori Tuzan, Audrey Daning Muhamad Shaleh, Sitti Raehanah Manjaji-Matsumoto, Bernardette Mabel |
| author_facet |
Mukai, Yukinori Tuzan, Audrey Daning Muhamad Shaleh, Sitti Raehanah Manjaji-Matsumoto, Bernardette Mabel |
| author_sort |
Mukai, Yukinori |
| title |
Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus |
| title_short |
Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus |
| title_full |
Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus |
| title_fullStr |
Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus |
| title_full_unstemmed |
Development of sensory organs and changes of behavior in larvae of the sutchi catfish, Pangasianodon hypophthalmus |
| title_sort |
development of sensory organs and changes of behavior in larvae of the sutchi catfish, pangasianodon hypophthalmus |
| publisher |
Springer Tokyo |
| publishDate |
2010 |
| url |
http://irep.iium.edu.my/2093/ http://irep.iium.edu.my/2093/ http://irep.iium.edu.my/2093/ http://irep.iium.edu.my/2093/1/2010_fisheries_science_sensory_organs.pdf |
| first_indexed |
2023-09-18T20:09:37Z |
| last_indexed |
2023-09-18T20:09:37Z |
| _version_ |
1777407390023417856 |