publication . Article . 2010

Harbor seal vibrissa morphology suppresses vortex-induced vibrations.

Lars Miersch; Johannes Oeffner; Matthias Witte; Alfred Leder; Wolf Hanke; Mark Michael; Martin Brede; Frederike D. Hanke; Guido Dehnhardt;
Open Access
  • Published: 01 Apr 2010 Journal: Journal of Experimental Biology, volume 213, pages 2,665-2,672 (issn: 0022-0949, eissn: 1477-9145, Copyright policy)
  • Publisher: The Company of Biologists
  • Country: Luxembourg
Abstract
SUMMARY Harbor seals ( Phoca vitulina ) often live in dark and turbid waters, where their mystacial vibrissae, or whiskers, play an important role in orientation. Besides detecting and discriminating objects by direct touch, harbor seals use their whiskers to analyze water movements, for example those generated by prey fish or by conspecifics. Even the weak water movements left behind by objects that have passed by earlier can be sensed and followed accurately (hydrodynamic trail following). While scanning the water for these hydrodynamic signals at a swimming speed in the order of meters per second, the seal keeps its long and flexible whiskers in an abducted p...
Subjects
free text keywords: Insect Science, Animal Science and Zoology, Aquatic Science, Physiology, Ecology, Evolution, Behavior and Systematics, Molecular Biology, vibrissae, CFD, PIV, hydrodynamics, pinniped, : Multidisciplinary, general & others [F99] [Life sciences], : Multidisciplinaire, généralités & autres [F99] [Sciences du vivant], Perpendicular, Whiskers, Phoca, biology.organism_classification, biology, Water Movements, Zalophus californianus, Harbor seal, Kármán vortex street, Geology, Acoustics, Vortex
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