Preprint volume - SIBM

Phytoplankton Groups
kg C m -3
3.00
2.50
2.00
1.50
1.00
0.50
0.00
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Pre-print Volume - Oral presentations
Topic 2: MARINE ORGANISMS AND ECOSYSTEMS AS MODEL SYSTEMS
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diatoms dinoflagellates phytoflagellates
Time (days)
Fig. 2 - The modelled results of the three phytoplankton groups biomass (kg C m -3 ).
I risultati del modello riferiti alla biomassa (kg C m -3 ) dei tre gruppi fitoplanctonici.
Globally, the ecological model of Mar Piccolo developed under the SPICOSA
experiment allowed us to reproduce the environmental conditions of such ecosystem:
the fresh-water runoff, the water circulation, and the nitrogen budget that constitute the
most important forcing factors for primary production. By considering the performed
test simulations, the phytoplankton growth is driven by the light and nutrient
conditions, and modified by the circulation and diffusion. The idea of simulating the
regenerated-nitrogen growth allowed us to evaluate the feedback with nutrient
regeneration that seems to be one of the most relevant aspects for phytoplankton
groups succession and indicator of environmental stress.
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