| Title |
Characterization of intermittency in zooplankton behaviour in turbulence
|
|---|---|
| Published in |
The European Physical Journal E, October 2015
|
| DOI | 10.1140/epje/i2015-15108-2 |
| Pubmed ID | |
| Authors |
François-Gaël Michalec, François G. Schmitt, Sami Souissi, Markus Holzner |
| Abstract |
We consider Lagrangian velocity differences of zooplankters swimming in still water and in turbulence. Using cumulants, we quantify the intermittency properties of their motion recorded using three-dimensional particle tracking velocimetry. Copepods swimming in still water display an intermittent behaviour characterized by a high probability of small velocity increments, and by stretched exponential tails. Low values arise from their steady cruising behaviour while heavy tails result from frequent relocation jumps. In turbulence, we show that at short time scales, the intermittency signature of active copepods clearly differs from that of the underlying flow, and reflects the frequent relocation jumps displayed by these small animals. Despite these differences, we show that copepods swimming in still and turbulent flow belong to the same intermittency class that can be modelled by a log-stable model with non-analytical cumulant generating function. Intermittency in swimming behaviour and relocation jumps may enable copepods to display oriented, collective motion under strong hydrodynamic conditions and thus, may contribute to the formation of zooplankton patches in energetic environments. |
Mendeley readers
The data shown below were compiled from readership statistics for 15 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 7% |
| Unknown | 14 | 93% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 3 | 20% |
| Student > Ph. D. Student | 3 | 20% |
| Student > Master | 2 | 13% |
| Researcher | 1 | 7% |
| Student > Postgraduate | 1 | 7% |
| Other | 0 | 0% |
| Unknown | 5 | 33% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 3 | 20% |
| Agricultural and Biological Sciences | 2 | 13% |
| Sports and Recreations | 2 | 13% |
| Engineering | 2 | 13% |
| Unknown | 6 | 40% |
Attention Score in Context
This research output has an Altmetric Attention Score of 29. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 November 2015.
All research outputs
#1,178,851
of 23,498,099 outputs
Outputs from The European Physical Journal E
#68
of 650 outputs
Outputs of similar age
#18,657
of 284,814 outputs
Outputs of similar age from The European Physical Journal E
#3
of 14 outputs
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