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Dinoflagellate Bioluminescence in Response to Mechanical Stimuli in Water Flows : Volume 12, Issue 3 (21/02/2005)

By Cussatlegras, A. S.

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Book Id: WPLBN0004019682
Format Type: PDF Article :
File Size: Pages 7
Reproduction Date: 2015

Title: Dinoflagellate Bioluminescence in Response to Mechanical Stimuli in Water Flows : Volume 12, Issue 3 (21/02/2005)  
Author: Cussatlegras, A. S.
Volume: Vol. 12, Issue 3
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Cussatlegras, A. S., & Gal, P. L. (2005). Dinoflagellate Bioluminescence in Response to Mechanical Stimuli in Water Flows : Volume 12, Issue 3 (21/02/2005). Retrieved from

Description: DIMAR, UMR 6540 CNRS-Universit´e de la Méditerranée, Centre d’Océanologie de Marseille, Parc Scientifique et technologique de Luminy, Case 901, 13288 Marseille cedex 9, France. Bioluminescence of plankton organisms induced by water movements has long been observed and is still under investigations because of its great complexity. In particular, the exact mechanism occurring at the level of the cell has not been yet fully understood. This work is devoted to the study of the bioluminescence of the dinoflagellates plankton species Pyrocystis noctiluca in response to mechanical stimuli generated by water flows. Several experiments were performed with different types of flows in a Couette shearing apparatus. All of them converge to the conclusion that stationary homogeneous laminar shear does not trigger massive bioluminescence, but that acceleration and shear are both necessary to stimulate together an intense bioluminescence response. The distribution of the experimental bioluminescence thresholds is finally calculated from the light emission response for the Pyrocystis noctiluca species.

Dinoflagellate bioluminescence in response to mechanical stimuli in water flows


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