Development of a Pelagic Ecosystem Model Considering the Microbial Loop and Field Evaluation in Ise Bay

Abstract

The purpose of this study is to develop a pelagic ecosystem model considering microbial processes coupled with the non-hydrostatic flow field in estuaries and coasts. The model was applied to the ecosystem simulation in Ise Bay and was evaluated its reproducibility for field observational data. Calculation results also revealed that the bacterial production corresponded to 18.2 % of the primary production though the bacterial biomass accounted for only 3.9 % of the total. Additionally, the bacterial respiration corresponded to 50 % of the total oxygen consumption in the bottom layer.