4.7 Article

Chaos control of chaotic plankton dynamics in the presence of additional food, seasonality, and time delay

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CHAOS SOLITONS & FRACTALS
卷 153, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chaos.2021.111521

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Plankton; Chaos; Seasonality; Additional food; Predation delay

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This article explores the mechanisms of chaos control in plankton systems in marine ecology, focusing on internal parameters, external forces, and additional food availability. The study highlights the impacts of predation delay and seasonal perturbations on system dynamics, as well as the effectiveness of control measures in managing chaos.
In marine ecology, plankton systems have rich and complex dynamics. The control of chaos in plankton systems is one of the main motives of recent research. In this article, the chaos control mechanisms is explored using internal parameters and external forces. Also, the availability of additional food for both zooplankton and fish is incorporated. The present work enhances the existing literature on the chaos control dynamics of available additional food for predator population by focusing on the consequences of predation delay and seasonal perturbations. It presents a comprehensive view of the different ranges of alternative food, periodic fluctuations, and time delay on the dynamics of the proposed system. The sta-bility analysis of the systems with and without predation delay is studied. The Hopf-bifurcation analysis is performed by taking time delay as a bifurcation parameter. Control of chaos in plankton-fish dynamics is explored with respect to additional food for plankton and fish population, predation delay, seasonal perturbations and delayed feedback control. The numerical simulation presents the validation of theoret-ical results. (c) 2021 Elsevier Ltd. All rights reserved.

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