Journal
APPLIED MATHEMATICS AND COMPUTATION
Volume 347, Issue -, Pages 249-264Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.amc.2018.11.005
Keywords
Stochastic phytoplankton-zooplankton model; Toxin-producing phytoplankton; Impulsive polluted environment; Survival analysis; Ergodicity
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Funding
- National Natural Science Foundation of China [11271260]
- Shanghai Leading Academic Discipline Project [XTKX2012]
- Hujiang Foundation of China [B14005]
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To theoretically address the effects of random environmental change on the growth of plankton, we propose a stochastic phytoplankton-zooplankton model with toxin-producing phytoplankton and Markov switching in an impulsive polluted environment. We then analyse the extinction and persistence in mean, including weak persistence and nonpersistence. By constructing Lyapunov function, we can show the model can be positive recurrent or ergodic. To conclude our study, we carry out some simulations, indicating that environmental fluctuations and exogenous toxicant input have a great influence on the survival fate of plankton. (C) 2018 Elsevier Inc. All rights reserved.
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