Key Words: Geometric morphometric, Morphology, Shape analysis, fishery, Caraga Region
Ecological differentiation in terms of spatial and temporal condition
highly attributes changes of the organism from genotypic to phenotypic
composition and thus affecting morphological structures. This study aims
to investigate the body shape variation in the population of Oreochromis mosambicus; Peters 1852 sampled from Lake Mainit, Mindanao, Philippines using Geometric Morphometric analysis.
The endemic O. mosambicus
constitute a significant fishery resource in the study area. Thus, they
are economically important fish species. A total of 60 individuals
comprises of 30 males, and 30 females were collected. The sample
collection was done in July 2019. Female and male samples were subjected
to Symmetry and Asymmetry Geometric Data Software (SAGE). Results show
that both female and male samples obtain a highly significant difference
P<0.0001 from the data provided through Procrustes ANOVA and
Principal Component Analysis (PCA) showing high fluctuating asymmetry
(FA) levels in female 57.52% when compared in males 52.78%. This show a
body shape variation among the sexes while the natural settings play a
major component for shifting shape and forms of organims. Thus, the
importance of using Geometric Morphometric analysis allows to scrutinize
the shape variation of fishes among and between populations and thus
clearly defines structures.Get the full articles at-
J. Bio. Env. Sci. 15(6), 82-91, December 2019.
J. Bio. Env. Sci. 15(6), 82-91, December 2019.
Journal of Biodiversity and Environmental Sciences-JBES is an open-access scholarly research journal, published by International Network for Natural Sciences-INNSPUB. JBES published original scientific articles in different field of Environmental Sciences and Biodiversity. JBES published 2 Volume and 12 issue per calender year.
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