Staff View: Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development

Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development

Tor tambroides is a highly sought after food, sport and ornamental fish in Southeast Asia. However its natural population is drastically declining while its aquaculture is still considered small relying mostly of the wild fry as its hatchery bred fry supply is low due to its partial spawning behavio...

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Main Authors:	Ismail, Muhammad Azfar, Kamarudin, Mohd Salleh, Ismail, Muhammad Fadhil Syukri, Mohamed Azahar, Siti Nur Ain, Latif, Kamil
Format:	Article
Language:	English
Published:	Elsevier 2019
Online Access:	http://psasir.upm.edu.my/id/eprint/80892/1/HYBRID.pdf http://psasir.upm.edu.my/id/eprint/80892/ https://www.sciencedirect.com/science/article/pii/S235251341930047X#!
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spelling	my.upm.eprints.808922020-10-15T22:56:40Z http://psasir.upm.edu.my/id/eprint/80892/ Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development Ismail, Muhammad Azfar Kamarudin, Mohd Salleh Ismail, Muhammad Fadhil Syukri Mohamed Azahar, Siti Nur Ain Latif, Kamil Tor tambroides is a highly sought after food, sport and ornamental fish in Southeast Asia. However its natural population is drastically declining while its aquaculture is still considered small relying mostly of the wild fry as its hatchery bred fry supply is low due to its partial spawning behavior. To reduce the pressure on its fisheries, a new hybrid of Malaysian mahseer was produced by crossbreeding Malaysian red mahseer Tor tambroides male and silver barb Barbonymous gonionotus female through induced breeding for possible introduction into the aquaculture industry. This 23-day study was carried out to observe the morphology, functional capabilities and histological of the mouth development of hybrid Malaysian mahseer larvae. Newly hatched larvae were reared in three 75 L aquaria with the stocking density of 10 larvae per liter. Larval mouth development was observed daily using light and scanning electron microscope (SEM). Histological analysis of the mouth was also carried out. The results showed that the larval mouth was closed at hatching and started to open and move at 3 DAH with an estimated opening of 111.01 ± 5.91 μm Ø and 173.11 ± 10.98 μm Ø at 45° and 90°, respectively. The taste buds started to function as early as 3 DAH and increased its number as fish grew. The exogenous feeding began in conjunction of the mouth opening. The mouth became terminal as early as 6 DAH with the presence of numerous taste buds at the mouth cavity. The mouth gap and total length showed strong polynomial relationship throughout the 23-day larviculture. From the mouth gap size, live foods such as rotifer and microworms seemed to be suitable for the first feeding of the hybrid fish larvae while Artemia nauplii could be given starting from 5 DAH. Elsevier 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/80892/1/HYBRID.pdf Ismail, Muhammad Azfar and Kamarudin, Mohd Salleh and Ismail, Muhammad Fadhil Syukri and Mohamed Azahar, Siti Nur Ain and Latif, Kamil (2019) Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development. Aquaculture Reports, 15. pp. 1-8. ISSN 2352-5134 https://www.sciencedirect.com/science/article/pii/S235251341930047X#! 10.1016/j.aqrep.2019.100210
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
language	English
description	Tor tambroides is a highly sought after food, sport and ornamental fish in Southeast Asia. However its natural population is drastically declining while its aquaculture is still considered small relying mostly of the wild fry as its hatchery bred fry supply is low due to its partial spawning behavior. To reduce the pressure on its fisheries, a new hybrid of Malaysian mahseer was produced by crossbreeding Malaysian red mahseer Tor tambroides male and silver barb Barbonymous gonionotus female through induced breeding for possible introduction into the aquaculture industry. This 23-day study was carried out to observe the morphology, functional capabilities and histological of the mouth development of hybrid Malaysian mahseer larvae. Newly hatched larvae were reared in three 75 L aquaria with the stocking density of 10 larvae per liter. Larval mouth development was observed daily using light and scanning electron microscope (SEM). Histological analysis of the mouth was also carried out. The results showed that the larval mouth was closed at hatching and started to open and move at 3 DAH with an estimated opening of 111.01 ± 5.91 μm Ø and 173.11 ± 10.98 μm Ø at 45° and 90°, respectively. The taste buds started to function as early as 3 DAH and increased its number as fish grew. The exogenous feeding began in conjunction of the mouth opening. The mouth became terminal as early as 6 DAH with the presence of numerous taste buds at the mouth cavity. The mouth gap and total length showed strong polynomial relationship throughout the 23-day larviculture. From the mouth gap size, live foods such as rotifer and microworms seemed to be suitable for the first feeding of the hybrid fish larvae while Artemia nauplii could be given starting from 5 DAH.
format	Article
author	Ismail, Muhammad Azfar Kamarudin, Mohd Salleh Ismail, Muhammad Fadhil Syukri Mohamed Azahar, Siti Nur Ain Latif, Kamil
spellingShingle	Ismail, Muhammad Azfar Kamarudin, Mohd Salleh Ismail, Muhammad Fadhil Syukri Mohamed Azahar, Siti Nur Ain Latif, Kamil Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development
author_facet	Ismail, Muhammad Azfar Kamarudin, Mohd Salleh Ismail, Muhammad Fadhil Syukri Mohamed Azahar, Siti Nur Ain Latif, Kamil
author_sort	Ismail, Muhammad Azfar
title	Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development
title_short	Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development
title_full	Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development
title_fullStr	Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development
title_full_unstemmed	Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development
title_sort	changes in the mouth morpho-histology of hybrid malaysian mahseer (barbonymus gonionotus♀× tor tambroides♂) during the larval development
publisher	Elsevier
publishDate	2019
url	http://psasir.upm.edu.my/id/eprint/80892/1/HYBRID.pdf http://psasir.upm.edu.my/id/eprint/80892/ https://www.sciencedirect.com/science/article/pii/S235251341930047X#!
_version_	1681490828061573120
score	13.211869

Changes in the mouth morpho-histology of hybrid Malaysian mahseer (Barbonymus gonionotus♀× Tor tambroides♂) during the larval development

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