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Sustained plankton blooms under open chaotic flows

AuthorsHernández-García, Emilio ; López, Cristóbal
KeywordsPredator–prey dynamics
Chaotic flows
Plankton blooms
Issue Date1-Sep-2004
CitationEcological Complexity 1(3): 253-259 (2004)
AbstractWe consider a predator-prey model of planktonic population dynamics, of excitable character, living in an open and chaotic fluid flow, i.e., a state of fluid motion in which fluid trajectories are unbounded but a chaotic region exists that is restricted to a localized area. Despite that excitability is a transient phenomenon and that fluid trajectories are continuously leaving the system, there is a regime of parameters where the excitation remains permanently in the system, given rise to a persistent plankton bloom. This regime is reached when the time scales associated to fluid stirring become slower than the ones associated to biological growth.
Description7 pages (final publisher version), 15 pages, 3 figures (attached post-print version).-- ArXiv pre-print available: http://arxiv.org/abs/nlin/0311054
Publisher version (URL)http://dx.doi.org/10.1016/j.ecocom.2004.05.002
Appears in Collections:(IFISC) Artículos
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