The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847)

This paper presents the first reliable record on the occurrence of the pangasiid catfish, Pangasius polyuranodon, in Peninsular Malaysia. It was previously unnoticed because of misidentification due to its close morphological appearance to Pseudolais micronemus. Pangasius polyuranodon can be positiv...

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Main Authors: Haslawati Baharuddin, Mohamed Rizman-Idid, Sekaran Muniandy, Mohd Zakaria-Ismail
Format: Article
Language:en
Published: Universiti Kebangsaan Malaysia 2014
Online Access:http://journalarticle.ukm.my/8041/1/09_Haslawati.pdf
http://journalarticle.ukm.my/8041/
http://www.ukm.my/jsm/
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author Haslawati Baharuddin,
Mohamed Rizman-Idid,
Sekaran Muniandy,
Mohd Zakaria-Ismail,
author_facet Haslawati Baharuddin,
Mohamed Rizman-Idid,
Sekaran Muniandy,
Mohd Zakaria-Ismail,
author_sort Haslawati Baharuddin,
building Tun Sri Lanang Library
collection Institutional Repository
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
continent Asia
country Malaysia
description This paper presents the first reliable record on the occurrence of the pangasiid catfish, Pangasius polyuranodon, in Peninsular Malaysia. It was previously unnoticed because of misidentification due to its close morphological appearance to Pseudolais micronemus. Pangasius polyuranodon can be positively distinguished from P. micronemus with a combination of characters: Distinctive palatal dentition with a large nearly squared vomerine tooth patch with small lateral palatine toothplates; longer maxillary and mandibular barbels; higher count of anal fin rays; higher counts of gill rakers on the first gill arch. Other characters are: longer caudal peduncle 19.84 ± 24.27% vs 18.35 ± 1.57% standard length (SL); wider anterior snout 35.49-40.60% head length (HL) and wider mouth 45.15-59.65% HL. This finding has important implications for taxonomy and conservation of indigenous Pangasiid catfishes, due to its close morphological appearance to the more abundant P. micronemus but with different biology and ecological behavior, thus necessitating different management and conservation strategies.
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spelling my-ukm.journal-80412016-12-14T06:46:01Z http://journalarticle.ukm.my/8041/ The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847) Haslawati Baharuddin, Mohamed Rizman-Idid, Sekaran Muniandy, Mohd Zakaria-Ismail, This paper presents the first reliable record on the occurrence of the pangasiid catfish, Pangasius polyuranodon, in Peninsular Malaysia. It was previously unnoticed because of misidentification due to its close morphological appearance to Pseudolais micronemus. Pangasius polyuranodon can be positively distinguished from P. micronemus with a combination of characters: Distinctive palatal dentition with a large nearly squared vomerine tooth patch with small lateral palatine toothplates; longer maxillary and mandibular barbels; higher count of anal fin rays; higher counts of gill rakers on the first gill arch. Other characters are: longer caudal peduncle 19.84 ± 24.27% vs 18.35 ± 1.57% standard length (SL); wider anterior snout 35.49-40.60% head length (HL) and wider mouth 45.15-59.65% HL. This finding has important implications for taxonomy and conservation of indigenous Pangasiid catfishes, due to its close morphological appearance to the more abundant P. micronemus but with different biology and ecological behavior, thus necessitating different management and conservation strategies. Universiti Kebangsaan Malaysia 2014-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8041/1/09_Haslawati.pdf Haslawati Baharuddin, and Mohamed Rizman-Idid, and Sekaran Muniandy, and Mohd Zakaria-Ismail, (2014) The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847). Sains Malaysiana, 43 (11). pp. 1707-1714. ISSN 0126-6039 http://www.ukm.my/jsm/
spellingShingle Haslawati Baharuddin,
Mohamed Rizman-Idid,
Sekaran Muniandy,
Mohd Zakaria-Ismail,
The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847)
title The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847)
title_full The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847)
title_fullStr The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847)
title_full_unstemmed The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847)
title_short The Occurrence of Pangasius polyuranodon Bleeker, 1852 (Teleostei: Pangasiidae) in Peninsular Malaysia with Remarks on the Comparative Morphology with Pseudolais micronemus (Bleeker, 1847)
title_sort occurrence of pangasius polyuranodon bleeker, 1852 (teleostei: pangasiidae) in peninsular malaysia with remarks on the comparative morphology with pseudolais micronemus (bleeker, 1847)
url http://journalarticle.ukm.my/8041/1/09_Haslawati.pdf
http://journalarticle.ukm.my/8041/
http://www.ukm.my/jsm/
url_provider http://journalarticle.ukm.my/