Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya
Barilius bendelisis, commonly known as Indian Hill Trout is an upland water fish of South East Asia. It belongs to the family Cyprinidae and dwells in shallow, clear and cold water. In this study, the intraspecific variation of Barilius bendelisis, on the basis of morphometric characters, was invest...
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Universidad de Costa Rica
2015
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RBT142522022-06-09T17:42:18Z Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya Iqbal Mir, Javaid Saxena, Neha Singh Patiyal, Rabindar Kumari Sahoo, Prabhati discriminant function analysis shape truss box fishes Cyprinidae discriminant function analysis shape truss box fishes Cyprinidae Barilius bendelisis, commonly known as Indian Hill Trout is an upland water fish of South East Asia. It belongs to the family Cyprinidae and dwells in shallow, clear and cold water. In this study, the intraspecific variation of Barilius bendelisis, on the basis of morphometric characters, was investigated. Altogether, 402 specimens were collected from four rivers in the Central Indian Himalaya. A truss network was constructed by interconnecting 12 landmarks to yield 30 distance variables that were extracted from digital images of specimens using tpsDig2 and PAST software. Allometric transformed truss measurements were subjected to univariate analysis of variance, factor analysis and discriminant analysis. All variables exhibited significant differences between the populations. Altogether 88% of the specimens were classified into their original populations (81.98% under a ‘leave-one-out’ procedure). With factor analysis measurements of the head region, the middle portion and the caudal region had high loadings on the first and second axis. The results indicated that B. bendelisis has significant phenotypic heterogeneity between the geographically isolated regions of Central Indian Himalaya. We hypothesize that the marked interspecific variation in B. bendelisis is the result of local ecological conditions. Barilius bendelisis, commonly known as Indian Hill Trout is an upland water fish of South East Asia. It belongs to the family Cyprinidae and dwells in shallow, clear and cold water. In this study, the intraspecific variation of Barilius bendelisis, on the basis of morphometric characters, was investigated. Altogether, 402 specimens were collected from four rivers in the Central Indian Himalaya. A truss network was constructed by interconnecting 12 landmarks to yield 30 distance variables that were extracted from digital images of specimens using tpsDig2 and PAST software. Allometric transformed truss measurements were subjected to univariate analysis of variance, factor analysis and discriminant analysis. All variables exhibited significant differences between the populations. Altogether 88% of the specimens were classified into their original populations (81.98% under a ‘leave-one-out’ procedure). With factor analysis measurements of the head region, the middle portion and the caudal region had high loadings on the first and second axis. The results indicated that B. bendelisis has significant phenotypic heterogeneity between the geographically isolated regions of Central Indian Himalaya. We hypothesize that the marked interspecific variation in B. bendelisis is the result of local ecological conditions. Universidad de Costa Rica 2015-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.ucr.ac.cr/index.php/rbt/article/view/14252 10.15517/rbt.v63i1.14252 Revista de Biología Tropical; Vol. 63 No. 1 (2015): Volume 63 – Regular number 1 – March 2015; 165–173 Revista de Biología Tropical; Vol. 63 Núm. 1 (2015): Volumen 63 – Número regular 1 – Marzo 2015; 165–173 Revista Biología Tropical; Vol. 63 N.º 1 (2015): Volume 63 – Regular number 1 – March 2015; 165–173 2215-2075 0034-7744 10.15517/rbt.v63i1 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/14252/17570 https://revistas.ucr.ac.cr/index.php/rbt/article/view/14252/17571 Copyright (c) 2015 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
institution |
Universidad de Costa Rica |
collection |
Revista de Biología Tropical |
language |
eng |
format |
Online |
author |
Iqbal Mir, Javaid Saxena, Neha Singh Patiyal, Rabindar Kumari Sahoo, Prabhati |
spellingShingle |
Iqbal Mir, Javaid Saxena, Neha Singh Patiyal, Rabindar Kumari Sahoo, Prabhati Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya |
author_facet |
Iqbal Mir, Javaid Saxena, Neha Singh Patiyal, Rabindar Kumari Sahoo, Prabhati |
author_sort |
Iqbal Mir, Javaid |
description |
Barilius bendelisis, commonly known as Indian Hill Trout is an upland water fish of South East Asia. It belongs to the family Cyprinidae and dwells in shallow, clear and cold water. In this study, the intraspecific variation of Barilius bendelisis, on the basis of morphometric characters, was investigated. Altogether, 402 specimens were collected from four rivers in the Central Indian Himalaya. A truss network was constructed by interconnecting 12 landmarks to yield 30 distance variables that were extracted from digital images of specimens using tpsDig2 and PAST software. Allometric transformed truss measurements were subjected to univariate analysis of variance, factor analysis and discriminant analysis. All variables exhibited significant differences between the populations. Altogether 88% of the specimens were classified into their original populations (81.98% under a ‘leave-one-out’ procedure). With factor analysis measurements of the head region, the middle portion and the caudal region had high loadings on the first and second axis. The results indicated that B. bendelisis has significant phenotypic heterogeneity between the geographically isolated regions of Central Indian Himalaya. We hypothesize that the marked interspecific variation in B. bendelisis is the result of local ecological conditions. |
title |
Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya |
title_short |
Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya |
title_full |
Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya |
title_fullStr |
Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya |
title_full_unstemmed |
Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya |
title_sort |
phenotypic differentiation of barilius bendelisis (cypriniformes: cyprinidae) in four rivers from central indian himalaya |
title_alt |
Phenotypic differentiation of Barilius bendelisis (Cypriniformes: Cyprinidae) in four rivers from Central Indian Himalaya |
publisher |
Universidad de Costa Rica |
publishDate |
2015 |
url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/14252 |
work_keys_str_mv |
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