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- Title
MORPHOMETRIC ANALYSIS USING TRUSS NETWORK SYSTEM IN ORANGE FIN BARB, HYPSELOBARBUS JERDONI (DAY 1870) FROM THE NETRAVATHI RIVER.
- Authors
Nasren, Shamima; Basavaraja, Nagappa; Shekar, Malathi; Al-Mamun, Md. Abdullah; Rathore, Sanjay Singh; Rawat, Shobha; Ronald, Kevin Dsouza; Rai, Aswhin
- Abstract
The truss network system was used to investigate the morphometric differences among three different life stages (Juvenile, sub-adult and adult) of Orange fin barb,Hypselobarbus jerdoni (Day 1870) from the Netravathi river. Truss network system of 14 landmarkswas interconnected to yield 91 distance variables. The principal component analysis (PCA) was employed for determining the morphometric variations. Four principal components were extracted through PCA explaining 99.864% of the total variance in samples. Again, the factor analysis of the transformed variables explained 98.24% of the total morphometric variation with percentage contribution of 93.543% and 4.70% on the first and second factor, respectively. The results acquired from Factor analysis (FA) and truss network system was that the maximum variations were dependent on the distance from i) anterior attachment of dorsal membrane from caudal fin to end of anal fin, ii) anterior attachment of dorsal membrane from caudal fin to insertion of pelvic fin, iii) anterior attachment of dorsal membrane from caudal fin to insertion of pectoral fin, iv) anterior attachment of dorsal membrane from caudal fin to end of operculum. The present study providesa useful insight on the application of truss analysis in the shape variationamong three different life stages of H. jerdoni.
- Subjects
FINLAND; PRINCIPAL components analysis; TRUSSES; FACTOR analysis; PECTORAL fins
- Publication
Journal of Experimental Zoology India, 2019, Vol 22, Issue 2, p1069
- ISSN
0972-0030
- Publication type
Article