Nutrient-plankton models with nutrient recycling
نویسندگان
چکیده
منابع مشابه
Oscillations in plankton models with nutrient recycling.
Plankton--nutrient interaction models with both instantaneous and delayed nutrient recycling are considered. The system consists of three components: autotrophic phytoplankton, herbivorous zooplankton and dissolved limiting nutrient. Local stability of the equilibria is analysed. It is shown that the positive equilibrium loses its stability when the nutrient input concentration passes through a...
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A three-trophic-level model of plankton dynamics with instantaneous nutrient recycling is considered. The model consists of autotrophic phytoplankton, herbivorous zooplankton, carnivorous zooplankton and dissolved limiting nutrient. Conditions are derived such that one or more components of the populations tend to extinction. Persistence criteria for the model are also obtained. As well, the bi...
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In this paper we propose a reaction-diffusion system with two distributed delays to stimulate the growth of plankton communities in the lakes/oceans in which the plankton feeds on a limiting nutrient supplied at a constant rate. The limiting nutrient is partially recycled after the death of the organisms and a distributed delay is used to model nutrient recycling. The second delay is involved i...
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Droop models of nutrient-phytoplankton-zooplankton interaction with intratrophic predation of zooplankton are introduced and investigated. The models proposed in this study are open ecosystems which include both a constant and a periodic input nutrient models. A simple stochastic model mimics a randomly varying nutrient input is also presented. For the deterministic models it is shown analytica...
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ژورنال
عنوان ژورنال: Computers & Mathematics with Applications
سال: 2005
ISSN: 0898-1221
DOI: 10.1016/j.camwa.2004.03.013