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Phosphorus and nitrogen drive the transmission dynamics of phytoplankton viruses in an unstirred chemostat

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Listed:
  • Han, Xu
  • Zhang, Jimin
  • Chang, Xiaoyuan

Abstract

Phytoplankton viruses can infect phytoplankton species and cause significant host mortality. This study develops a dynamic model to characterize the transmission dynamics of phytoplankton viruses in an unstirred chemostat. A novel feature of this model is that virus transmission is driven by phosphorus and nitrogen, which has been experimentally validated. Model dynamics are investigated including some basic properties of solutions, steady state solutions, and uniform persistence. Several quantitative ecological indices for plankton survival and phytoplankton virus transmission are obtained. The numerical bifurcation diagrams reveal the roles of ecological factors on virus transmission and plankton biomass. The results show that phytoplankton viruses and zooplankton exhibit negative interactions, and spatial factors influence virus transmission dynamics. Especially, phytoplankton viruses significantly control phytoplankton biomass even under conditions of increased phosphorus or nitrogen concentrations.

Suggested Citation

  • Han, Xu & Zhang, Jimin & Chang, Xiaoyuan, 2025. "Phosphorus and nitrogen drive the transmission dynamics of phytoplankton viruses in an unstirred chemostat," Chaos, Solitons & Fractals, Elsevier, vol. 200(P3).
    • Handle: RePEc:eee:chsofr:v:200:y:2025:i:p3:s0960077925011890
    DOI: 10.1016/j.chaos.2025.117176
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    References listed on IDEAS

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