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Título: | Microscale patches of nonmotile phytoplankton |
Autor: | Arrieta, Jorge CSIC ORCID; Barreira, Ana CSIC; Tuval, Idan CSIC ORCID | Fecha de publicación: | 27-mar-2015 | Editor: | American Physical Society | Citación: | Physical Review Letters 114(12): 128102 (2015) | Resumen: | © 2015 American Physical Society. Phytoplankton cells have evolved sophisticated strategies for actively responding to environmental signals, most notably to mechanical stresses of hydrodynamic origin. A largely unanswered question, however, is the significance of these cellular responses for the largely heterogeneous spatial distribution of cells found in the oceans. Motivated by the physiological regulation of buoyancy prevalent in nonmotile phytoplankton species, we solve here a minimal model for >active> sinking that incorporates these cellular responses. Within this model, we show how buoyancy regulation leads to intense patchiness for nonmotile species as compared to passive tracers, resulting in important variations in settling speeds and, as a consequence, determining escape rates to the deep ocean. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.114.128102 | URI: | http://hdl.handle.net/10261/126069 | DOI: | 10.1103/PhysRevLett.114.128102 | Identificadores: | doi: 10.1103/PhysRevLett.114.128102 issn: 1079-7114 |
Aparece en las colecciones: | (IMEDEA) Artículos |
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Arrieta-PhysRevLett-2015-v114-128102.pdf | 1,25 MB | Adobe PDF | Visualizar/Abrir |
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