Effects of phytoplankton mortality caused by unpredictable conditions - numerical simulations

• Autorzy: Dzierzbicka-Glowacka L
• Języki publikacji: EN

Abstrakty

EN

The influence of episode of density-independent mortality on the time-space variability of phytoplankton distribution in the near surface layer of a stratified sea is the aim of this paper. The mortality of phytoplankton in unpredictable conditions, like a spill of crude oil or other chemicals is considered. The numerical simulations were carried out using a biological model of upper layer with a developed primary production and regeneration mechanisms and of daily migration of zooplankton. In such cases an increase in the mortality rate intensifies the decrease in phytoplankton biomass. Such a situation can on occasion lead to phytoplankton extinction, and hence to irreversible changes in its distribution area.

Słowa kluczowe

EN

biomass; distribution area; crude oil; mortality; unpredictable condition; sea; regeneration mechanism; modelling; phytoplankton; daily migration; surface layer

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2007
• Tom: 55
• Numer: 1
• Opis fizyczny: p.27-37,fig.,ref.

Twórcy

autor

Dzierzbicka-Glowacka L

• Polish Academy of Sciences, Powstancow Warszawy 55, 81-712 Sopot, Poland

Bibliografia

• Billen G., Lancelot C., Meybeck M. 1991 – N, P and Si retention along the aquatic continuum from land to ocean (In: Ocean margin processes in global change, physical, chemical, and earth sciences research. Eds. R.F.C. Mantoura, J.M. Martin, Wollast) – Wiley & Sons, New York, pp.19–44.
• Dera J. 1992 – Marine physics – Elsevier, Amsterdam–Oxford–New York–Tokyo, 520 pp.
• Dzierzbicka-Głowacka L. 1994 – Mathematical modelling of the chlorophyll-a distribution function in a stratified sea – Ph. D. Thesis, Gdańsk Univ. Gdynia.
• Dzierzbicka-Głowacka L. 2000 – Mathematical modelling of the biological processes in the upper layer of the sea – Diss. Monogr., vol.13. Institute of Oceanology PAS, Sopot, 124 pp.
• Dzierzbicka-Głowacka L. 2005a – A numerical investigation of phytoplankton and Pseudocalanus elongatus dynamics in the spring bloom time in the Gdańsk Gulf – J. Marine Sys. 53: 19–36.
• Dzierzbicka-Głowacka L. 2005b – Modelling the seasonal dynamics of marine plankton in the southern Baltic Sea. Part 1. A Coupled Ecosystem Model – Oceanologia, 47: 591–619.
• Fransz H.G., Mommaerts J., Radach G. 1991 – Ecological modelling of the North Sea – Neth. J. Sea Res. 28: 67–140.
• IMGW 2000 – Environmental conditions in the Polish zone of the southern Baltic Sea during 1999 – Oddz. Mor. Inst. Meteorol. Gosp. Wod., Gdynia (in Polish with English summary).
• Jankowski A. 2002 – Application of a σ-coordinate baroclinic model to the Baltic Sea – Oceanologia, 44: 59–80.
• Mellor G.L. 1993 – User’s guide for a threedimensional, primitive equation, numerical ocean model – Prog. Atmos. Ocean Sci. Princeton University, Princeton, 35 pp.
• Okubo A. 1976 – Remarks on the use of ‘diffusion diagrams’ in modeling scale-dependent diffusion – Deep-Sea Res. 23: 1213.
• Peters H., Gregg M.C., Toole M.I. 1988 – On the parametrization of equatorial turbulence – J. Geophys. Res. 93 (C2): 216–225.
• Radach G., Moll A. 1993 – Estimation of the variability of production by simulating annual cycles of phytoplankton in the central North Sea – Prog. Oceanogr. 31: 339–419.
• Raymont I.E.G. 1980 – Plankton and productivity in the oceans. 2nd ed. (In: Phytoplankton) Pergamon, Toronto, 489 pp.
• Renk H. 2000 – Produkcja pierwotna południowego Bałtyku [Primary production in the southern Baltic] – Stud. Mater. Mor. Inst. Ryb. Gdynia, 35 (A), 78 pp. (in Polish, English summary).
• Sjoberg S. 1980 – A mathematical and conceptual framework for models of the pelagic ecosystem of the Baltic Sea (In: Formulations and emploratory simulations) – Asko labor. Univ. Stockholm, Stockholm, pp. 1–27.
• Stigebrandt A., Wulff F. 1987 – A model for the dynamics of nutrients and oxygen in the Baltic Proper – J. Mar. Res. 45: 729–759.
• Svansson A. 1996 – A diffusion model for primary production of phytoplankton – Deep- Sea Res. II 43: 37–46.
• Tamsalu R., Ennet P. 1995 – Ecosystem modelling in the Gulf of Finland. The aquatic ecosystem Model FINEST – Estuar. Coast. Shelf Sci. 41: 429–458.
• Tamsalu R. (ed.) 1998 – Coupled 3D hydrodynamic and ecosystem model FinEst – Finn. Inst. Mar. Res., Rap. No 35, Helsinki, 166 pp.
• Witek Z. (ed.) 1993 – Structure and function of marine ecosystem in the Gdańsk Basin on the basis of studies performed in 1987 – Stud. Mater. Oceanol. 63, 125 pp.
• Witek Z. 1995 – Produkcja biologiczna i jej wykorzystanie w ekosystemie morskim w zachodniej części Basenu Gdańskiego [Biological production and its consumption in the marine ecosystem of the western Gdańsk Basin] – Wyd. Mor. Inst. Ryb., Gdynia, 145 pp. (in Polish, English summary).