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MODELING MOVEMENT PATTERNS OF THE CYANOBACTERIUM, MICROCYSTIS
Author(s) -
Howard Alan
Publication year - 2001
Publication title -
ecological applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.864
H-Index - 213
eISSN - 1939-5582
pISSN - 1051-0761
DOI - 10.1890/1051-0761(2001)011[0304:mmpotc]2.0.co;2
Subject(s) - bloom , microcystis , environmental science , water column , cyanobacteria , latitude , microcystis aeruginosa , diel vertical migration , ecology , atmospheric sciences , biology , geology , genetics , bacteria , geodesy
This paper reports the development of a model that simulates the movement and growth of the cyanobacterium, Microcystis aeruginosa. The new model follows from the approach taken in the SCUM'96 (simulation of cyanobacterial underwater movement) model by calculating the photosynthetic production of carbohydrate, allocating this to growth and cell maintenance with excess production forming cellular ballast. From this, density change is calculated and vertical migration simulated within the water column. Lake heating and cooling, turbulent mixing, and other environmental processes are simulated to study the response of cyanobacteria to environmental variability. The model can be run over long periods for areas of different geographical latitude. Model output compares well with field observations suggesting that surface “bloom” formation is a natural consequence of lake mixing and seasonal light availability.