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Title: Shell Shapes of the Chinese Pond Mussel Sinanodonta Woodiana (Lea, 1834) from Lawis Stream in Iligan City and Lake Lanao in Mindanao, Philippines
Authors: Cesar G. Demayo; Krichi May C. Cabacaba ; Mark Anthony J. Torres
Aff: Department of Biological Sciences, College of Science and Mathematics, MSU-Iligan Intitute of Technology, Iligan City, Philippines
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Keywords: Elliptic Fourier; Mussel; Geometric Morphometrics
Abstract:This study aimed to determine morphological variation within and between two populations of S.woodiana (Lea, 1834) from Lake Lanao, Marantao and Lawis stream, Iligan City using elliptic Fourier analysis. Results showed morphological divergence between the two populations. The MANOVA/ CVA resulted to the rejection of allometry as the cause of variations between the two populations. The observed differentiation may reflect some underlying genetic basis. There was considerable difference in the distribution of the CVA scores between the two sites which is suggestive of varying selection pressure on the populations.