Copepod Aggregations: Influences of Physics and Collective Behavior
Author(s)
Woods, Nicholas W.; Flierl, Glenn Richard
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Dense copepod aggregations form in Massachusetts Bay and provide an important resource for right whales. We re-examine the processes which might account for the high concentrations, investigating both horizontally convergent flow, which can increase the density of depth-keeping organisms, and social behavior. We argue that the two act in concert: social behavior creates small dense patches (on the scale of a few sensing radii); physical stirring brings them together so that they merge into aggregations with larger scales; it also moves them into areas of physical convergence which retain the increasingly large patch. But the turbulence can also break this apart, suggesting that the overall high density in the convergence zone will not be uniform but will instead be composed of multiple transient patches (which are still much larger than the sensing scale).
Date issued
2014-12Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary SciencesJournal
Journal of Statistical Physics
Publisher
Springer US
Citation
Flierl, Glenn R., and Nicholas W. Woods. “Copepod Aggregations: Influences of Physics and Collective Behavior.” Journal of Statistical Physics 158.3 (2015): 665–698.
Version: Author's final manuscript
ISSN
0022-4715
1572-9613