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| Titel |
Population modelling of Acartia spp. in a water column ecosystem model for the South-Eastern Baltic Sea |
| VerfasserIn |
L. Dzierzbicka-Glowacka, I. M. Żmijewska, S. Mudrak, J. Jakacki, A. Lemieszek |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 7, no. 7 ; Nr. 7, no. 7 (2010-07-21), S.2247-2259 |
| Datensatznummer |
250004903
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| Publikation (Nr.) |
 copernicus.org/bg-7-2247-2010.pdf |
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| Zusammenfassung |
| This paper describes numerical simulations of the seasonal dynamics of
Acartia spp. in the South-Eastern Baltic Sea. The studies were carried out using a
structured zooplankton population model adapted to Acartia spp. The population
model with state variables for eggs, nauplii, five copepodites stages and
adults was coupled with a marine ecosystem model. Four state variables for
the carbon cycle represent the functional units of phytoplankton, pelagic
detritus, benthic detritus, and bulk zooplankton, which represent all
zooplankton other than the structured population. The annual cycle simulated
for 2000 under realistic weather and hydrographic conditions was studied
with the coupled ecosystem-zooplankton model applied to a water column in
the Gdansk Gulf (South-Eastern Baltic Sea). The vertical profiles of
selected state variables were compared to the physical forcing to study
differences between bulk and structured zooplankton biomass. The simulated
population dynamics of Acartia spp. and zooplankton as one biomass state variable
were compared with observations in the Gdansk Gulf. Simulated generation
times are more affected by temperature than food conditions except during
the spring phytoplankton bloom. The numerical studies are a following step
in understanding how the population dynamics of a dominant species in the
South-Eastern Baltic Sea interact with the environment. |
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