Numerical simulations of marine zooplankton dynamics and its interaction with other system components

• Autorzy: Dzierzbicka-Głowacka L.
• Języki publikacji: EN

Abstrakty

EN

This paper presents the numerical simulations of the influence of the zooplankton dynamics on the phytoplankton, zooplankton and nutrient biomasses in the sea. The numerical studies were carried out using a phytoplanktonzooplankton-nutrient-detrius PhyZooNuDe biological upper layer model with a full-developed regeneration mechanism and with regarding daily migration of zooplankton. In this model the zooplankton is treated not as "biomass" but as organisms having definite patterns of growth, reproduction, and mortalityassuming, also {Zoop} is composed of (i) cohorts of copepods with weights (W[i]) and numbers (Z[i]); then {Zoop} = SigmaW[i]Z[i]. The PhyZooNuDe model consists of three coupled, partial second-order differential equations of the diffusion type for phytoplankton, zooplankton, nutrients and one ordinary first-order differential equation for benthic detritus pool, together with initial and boundary conditions. The calculation were made for 35 days in an area 0 mniejsze lub równe z mniejsze lub rowne 20m with a vertical space step of 10 cm and a time step of 5 min. The experimental data, gathered during the PEX'86 international scientific experiment of the Baltic states, and subsequently by the International Council for the Exploration of the Sea, were used as the input data for the calculations. The simulation given here demonstrated as factors of grazing, growth, metabolism, reproduction, and mortality of copepods are important since can alter the nature of the interactions of plants and herbivores.

Słowa kluczowe

EN

detritus; mathematical model; nutrient; phytoplankton; zooplankton

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2001
• Tom: Vol. 49, nr 1
• Strony: 3--18
• Opis fizyczny: Bibliogr. 42 poz.,

Twórcy

autor

Dzierzbicka-Głowacka L.

• Institute of Oceanology PAS, Powstańców Warszawy 55, 81-712 Sopot, Poland

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