title: Ecological morphotaxometry of trematodes of garfish (Teleostomi: Belonidae) from Gangetic riverine ecosystem in India. III. Principal component analysis in the dynamics of Cephalogonimus yamunii (Upadhyay, Jaiswal, Malhotra and Malhotra, 2012).
abstract: The attributes of multivariate analyses were applied to infer peculiarity in distribution dynamics of Cephalogonimus yamunii Upadhyay et al. (J Parasit, 2012) in Xenentodon cancilla under influence of interionic interactions amongst hydrobiological factors. Non-parametric Mann-Whitney's Test χ(2) statistic was significant for the effect of Dissolved Oxygen and magnesium. The temperature optimum 23-27 °C was concluded for expression of peak prevalence and mean intensity during change in water temperature between autumn and winter periods. The dominant Ist component (PC1 (p) ) from Principal Component Analysis of monthwise response of infection data by C. yamunii in X. cancilla was further confirmed by Scree Plot of Eigenvalues and Factor Loadings Plot to identify the critical impact of hardness of water on infection prevalence and mean intensity. The findings of larger PC1 (p) positive coefficients comprehensively substantiated predominating hardness factor, under the influence of enhanced Dissolved Oxygen and optimum thermal effect. Therefore, the role of multifactorial etiology is a definite possibility.
authors.affiliation: Parasitology Laboratory, Department of Zoology, University of Allahabad, Allahabad, 211002 UP India.
authors.forename: Neeshma
authors.initials: N
authors.lastname: Jaiswal
authors.affiliation: Parasitology Laboratory, Department of Zoology, University of Allahabad, Allahabad, 211002 UP India.
authors.forename: Sushil K
authors.initials: SK
authors.lastname: Upadhyay
authors.affiliation: Parasitology Laboratory, Department of Zoology, University of Allahabad, Allahabad, 211002 UP India ; Department of Neurological Surgery, D-4108, Medical Center North, Vanderbilt University Medical Center, Nashville, TN 37232 USA.
authors.forename: Anshu
authors.initials: A
authors.lastname: Malhotra
authors.affiliation: Parasitology Laboratory, Department of Zoology, University of Allahabad, Allahabad, 211002 UP India.
authors.forename: Sandeep K
authors.initials: SK
authors.lastname: Malhotra
keywords: Cephalogonimus yamunii; Interionic interaction; Overdispersion; Poisson series; Xenentodon cancilla