Phytoplankton-chytrid-zooplankton dynamics via a reaction-diffusion-advection mycoloop model.
J Math Biol
; 89(2): 15, 2024 Jun 17.
Article
em En
| MEDLINE
| ID: mdl-38884837
ABSTRACT
Mycoloop is an important aquatic food web composed of phytoplankton, chytrids (one dominant group of parasites in aquatic ecosystems), and zooplankton. Chytrids infect phytoplankton and fragment them for easy consumption by zooplankton. The free-living chytrid zoospores are also a food resource for zooplankton. A dynamic reaction-diffusion-advection mycoloop model is proposed to describe the Phytoplankton-chytrid-zooplankton interactions in a poorly mixed aquatic environment. We analyze the dynamics of the mycoloop model to obtain dissipativity, steady state solutions, and persistence. We rigorously derive several critical thresholds for phytoplankton or zooplankton invasion and chytrid transmission among phytoplankton. Numerical diagrams show that varying ecological factors affect the formation and breakup of the mycoloop, and zooplankton can inhibit chytrid transmission among phytoplankton. Furthermore, this study suggests that mycoloop may either control or cause phytoplankton blooms.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Fitoplâncton
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Zooplâncton
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Cadeia Alimentar
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Conceitos Matemáticos
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Modelos Biológicos
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article