| Autor: |
Bhavanjali, M. R., Anjanayappa, H. N., Manjunath, N., Satyaveer, Nithin, M. S., Nayana, P. |
| Zdroj: |
Journal of Experimental Zoology India; Jan2023, Vol. 26 Issue 1, p319-325, 7p |
| Abstrakt: |
Morphometric variation among wild and farm bred specimens of Dawkinsia assimilis was studied using the truss network system constructed from the fish body. The network included 12 landmarks interconnected to yield 27 distance variables. Data were subjected to multivariate techniques viz., discriminant analysis, canonical correlation, principal component analysis (PCA) and factor analysis (FA) to investigate distinctions and patterns of morphological variations between wild and farm-bred mascara barbs. One function was extracted by discriminant analysis, where 100% of variance was used to discriminate between the two groups. Canonical correlations suggested the function described in the analysis as highly discriminating. Three principal components were extracted through PCA indicating 92.503% variation. Further, factor analysis of the transformed variables explained 90.23% of the total morphometric variation with a contribution of 76.449%, 8.547%, and 5.233% against the first, second, and third factors, respectively. In addition, morphometric analyses suggest most differences to be located primarily in the anterior region of the fish body. These differences on mascara barb were found to be focused either on the dorsal, anal and caudal fin region. The use of truss network to study the morphological variation between wild and farm bred groups provide various perspectives in studying the biodiversity patterns of D. assimilis. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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