Instability of a Uniform Plankton Distribution

Modeling, Identification and Control

关键词: Modelling;    phytoplankton;    zooplankton;    patchiness;    spatial distribution;    stability;    turbulent diffusion;   

DOI  :  10.4173/mic.1981.2.3

来源: DOAJ

【 摘 要 】

For a plankton model system, a horizontally uniform distribution becomes unstable if the zooplankton component carries out diurnal vertical migrations in an ocean with a speed difference between the currents in upper and lower waterlaycrs. With turbulent diffusion included in the model, the instability occurs beyond a threshold speed difference. A numerical estimation of the threshold and of the critical patch size gives reasonable values.

【 授权许可】

Unknown