Dynamic Trends in the Biological System of Turbellarians in Water Bodies Adjacent to Lake Baikal ( <i>Phagocata sibirica</i>) in Response to Stress Impact: a Model of Associated Bistable Oscillators
Experimental investigation of the behavior of turbellarians in water bodies located in the basin of Lake Baikal ( <i>Phagocata sibirica</i> (Zabussov, 1903)) in response to the impact of light, toxic substances and combined effect of these factors allowed us to determine specific features in the behavior of the biosystem under the conditions of impact beyond the homeostasis. It has been determined that under the impact of light of increasing intensity, the system demonstrates oscillatory behavior of turbulent type with the effects of synchronization and desynchronization. Analysis of experimental results within the framework of non-linear dynamic systems theory has indicated that the behavior of turbellarian system is conformant with the model of associated bistable oscillators, which are synchronized by the internal system noise.