Landmark-based relative warp analysis of Golden Apple Snail (Pomacea caniculata) from Agusan del Norte and Sur rice fields, Philippines

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Research Paper 01/08/2021
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Landmark-based relative warp analysis of Golden Apple Snail (Pomacea caniculata) from Agusan del Norte and Sur rice fields, Philippines

Julie S. Berame, Minie L. Bulay, Caryl Aya B. Miranda, Mery Jane A. Belmonte, Michael C. Millanes
Int. J. Biosci.19( 2), 118-128, August 2021.
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The Golden Apple Snail, Pomacea caniculata is considered one of the serious agricultural pests of rice in Asia’s countries. Its rapid invasion in many habitats suggests genetic variability and differentiation that  expressed in the level of the phenotype. As this pest exists, the researchers endeavor to describe the shell shape variations of Pomacea caniculata sample in from different rice fields of Agusan del Norte and Agusan del Sur. A total of 200 golden apple snails (P.caniculata) were randomly collected in the rice fields of Bayugan City, Antongalon Butuan City, RTR and Buenavista, Agusan del Norte. To determine shell shape variations among the four (4) snail populations and coordinates were administered to relative warp analysis. Data were subjected to Multivariate Analysis of Variance (MANOVA) using the PAST Software. Results show statistically significant (p<0.05) from the appended ventral and dorsal portions of P.caniculata. These phenotypic distinctions were associated in geographic isolation, predation, and nutrient components of the gastropods.  Thus, the importance of using geometric morphometric is important in describing shell shape variations of Pomacea caniculata.


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