Search Results for : Shape analysis
Morphological Analysis on the Body Shape of Oreochromis niloticus using Fluctuating Asymmetry as an Indicator of Stress in Major River Tributaries of Bayog Watershed
This study utilized the fluctuating asymmetry as a biomarker of stress in the morphology of O. niloticus from the river tributaries of Bayog Watershed, Bayog, Zamboanga del Sur. A total of 136 samples were used in this study, distributed into 17 males and 17 females for each of the sampling sites. Then, it was landmarked […]
Elliptic fourier analysis of leaf shape variation of mangroves found in Camiguin Island, Philippines
Mangrove forests are integral part of the ecosystem providing important services, including protecting coastlines from the impacts of extreme weather events, such as storm surge and erosion. In the Philippines, 40 species out of 54 in the world are present and 6 species are found in Camiguin. Delineating between species is important for ecosystem management […]
Wing shape variations in Calopteryx splendens along a latitudinal gradient using geometric morphometric analysis
Fluctuating asymmetry (FA) quantifies the degree of variations from a perfect symmetry and therefore expected to reflect the state of genomic and ecological stress undergone by the single species and or populations throughout its development. It identifies the extent of differences from the symmetry of left and right sides of the organisms, as both sides […]
Describing shell shapes of Venerid bivalves using elliptic fourier analysis
In this study, Elliptic Fourier (EF) analysis was used to describe phenotypic variation among the selected venerid bivalve species Meretrix lyrata (lyrate asiatic hard clam), Chamelea striatula (striped venus clam) and Tapes dorsatus (turgid venus clam). Thus, to describe possible phenotypic diversity, a total of 90 venerid bivalves (30 specimens for each species) were photographed […]
Relative Warp Analysis on Shell Shapes of Faunus ater in Guihing River Hagonoy, Davao del Sur
This study aims to characterize the relative warp analysis on shell shapes of the Faunus ater. A total of 60 individuals were analyzed based on their shell shape and was deliberated using a landmark-based methodology. The following are the total landmarks stated and used: ventral/aperture=27, dorsal=17 and top of the whorl=147. Procrustes ANOVA showed the […]
Abundance, seasonal variations and polymer analysis of microplastics in Mahim Bay waters, Mumbai, India
Microplastic pollution is a growing environmental concern globally, with potential implications for marine ecosystems and human health. This study investigates the seasonal dynamics, abundance, polymer types, and potential sources of microplastics in Mahim Bay, Mumbai, India. Water samples were collected from six locations across Mahim Bay during the pre-monsoon, monsoon, and post-monsoon seasons. Analysis revealed […]
Evolutionary Perspectives for Analyzing Shell Shape Changes in Golden Apple Snail (Pomacea canaliculata) using Landmark-Based Geometric Morphometrics
Geometric morphometric (GM)analysiswas used to carry out variations of the shell shape of Pomacea canaliculata. Freshwater golden apple snails were investigated to find out whether males and females vary in their dorsal and ventral shell orientation considering the fact that they adapt differently to their environment. Relative warps (RW) analysis was done using tpsRelw which […]
Landmark-based relative warp analysis of Golden Apple Snail (Pomacea caniculata) from Agusan del Norte and Sur rice fields, Philippines
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 […]
Geospatial analysis of thalassemia patients’ prevalence in district Gujrat, Pakistan in 2015-2016
Using Geographical Information System health analysis measures can contribute to the profound understanding of health related issues and disease occurrence for public awareness and forecasting essential improvements. The present research was designed to determine the cluster analysis of thalassemia patients in Gujrat district. A purposive sample comprised 142 thalassemia major survivors was gathered conveniently from […]
Investigating body shape variation of Oreochromis mosambicus (Peters, 1852) sampled from Lake Mainit, Mindanao, Philippines
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. […]