Understanding chlorophyll dynamics in aquatic ecosystems in Bay of Bengal

The present article explores the dynamics of chlorophyll concentration in aquatic ecosystems of the Bay of Bengal, emphasising its critical role in supporting phytoplankton populations and, consequently, the health of marine environments.The study presents a chlorophyll dynamics model governed by a differential equation that incorporates intrinsic growth rates, carrying capacity and loss processes.A significant finding is the identification of a stable fixed point at C = 1 mg/m 3 , which represents a threshold concentration for chlorophyll.At this concentration, the system is poised for maximum fish catch, as it indicates optimal conditions for zooplankton grazing, which in turn supports higher trophic levels.Understanding this relationship is also vital for effective ecosystem management and predicting algal blooms, thereby contributing to sustainable fisheries and aquaculture practices.The implications of these findings underscore the importance of monitoring chlorophyll dynamics to maintain ecological balance and optimise fishery yields.