Ecological morphotaxometry of trematodes of garfish (Teleostomi: Belonidae) from Gangetic riverine ecosystem in India. II. Correlation of seasonality and host biology with distribution pattern of Cephalogonimus yamunii n.sp.

The seasonality influence on the biology and distribution dynamics of Cephalogonimus yamunii n.sp. in Xenentodon cancilla (Teleostomi: Belonidae) was reflected during 2 years' investigations. The highest infection prevalence appeared to be in late summer. Size, weight, and sex-biased population dynamics of trematode was well marked in Gangetic riverine ecosystem. The biostatistical non-parametric Mann-Whitney χ (2) test values were significant for dissolved oxygen and magnesium. The distribution of infection data on Poisson series ruled out overdispersion because good agreement was observed (P < 0.01).