期刊
JOURNAL OF BIOLOGICAL PHYSICS
卷 33, 期 4, 页码 271-290出版社
SPRINGER
DOI: 10.1007/s10867-008-9066-3
关键词
toxin-producing phytoplankton; nutrient; seasonal bloom; chaos
类别
A simple nutrient-phytoplankton model is proposed and analyzed in the presence of toxic chemicals released by toxin-producing phytoplankton (TPP) to understand the dynamics of seasonally recurring bloom phenomena. We observe that the presence of toxic chemicals helps to explain the bloom phenomenon. We have further studied our proposed system by varying the toxin liberation rate. Our model displays a wide range of dynamical behaviours, from simple cyclical blooms to irregular chaotic blooms. We also observe skipping phenomenon. The effect of toxic chemicals released by TPP cannot, thus, be ignored in 'bottom-up' models.
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