Pranab Jyoti Hazarika

Hopf Bifurcation and Stability Switching in a Dual‐Delay Predator–Prey System With Schooling Modified Predation and Sigmoidal Harvesting

ABSTRACT Predator–prey models incorporating nonlinear predation, interspecific competition, harvesting, and reproductive delays provide important tools for understanding the mechanisms governing ecological stability and oscillatory dynamics. However, the combined effects of schoo...

A nonlinear dynamical model for oxygen depletion and fish mortality due to water hyacinth infestation

Water hyacinth (Eichhornia crassipes) is a highly invasive aquatic plant that severely degrades freshwater ecosystems by depleting dissolved oxygen, disrupting nutrient dynamics, and threatening fish populations. In this study, we develop and analyze a dimensionless nonlinear dyn...