ISSN:
1432-1416
Keywords:
Continuity equations
;
Light trap method
;
Mathematical model
;
Photophobic reaction
;
Population method
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Mathematics
Notes:
Summary Accumulations of the filamentous Cyanophyceae Phormidium uncinatum in light traps result from repeated photophobic reactions at the light-dark border. The time course of accumulations shows an initial linear part and reaches a saturation level after longer periods of time. A mathematical model is proposed based on a limited number of fundamental assumptions, which can be justified by the experimental data. A set of differential equations, which can be solved in a closed form, describe the current density j of the net influx of trichomes into the light trap. Absorption by the accumulating organisms diminishes the initial light intensity I 0 to a limiting intensity I 1 below which no more organisms react phobically. I 1 depends on the initial light intensity I 0. Furthermore the absorbance of a single layer of organisms has been calculated from the experimental data.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00276124
Permalink
