Lobster Sniffing: Antennule Design and Hydrodynamic Filtering of Information in an Odor Plume Journal Article uri icon



  • The first step in processing olfactory information, before neural filtering, is the physical capture of odor molecules from the surrounding fluid. Many animals capture odors from turbulent water currents or wind using antennae that bear chemosensory hairs. We used planar laser–induced fluorescence to reveal how lobster olfactory antennules hydrodynamically alter the spatiotemporal patterns of concentration in turbulent odor plumes. As antennules flick, water penetrates their chemosensory hair array during the fast downstroke, carrying fine-scale patterns of concentration into the receptor area. This spatial pattern, blurred by flow along the antennule during the downstroke, is retained during the slower return stroke and is not shed until the next flick.

publication date

  • November 30, 2001

has restriction

  • closed

Date in CU Experts

  • March 18, 2014 12:43 PM

Full Author List

  • Koehl MAR; Koseff JR; Crimaldi JP; McCay MG; Cooper T; Wiley MB; Moore PA

author count

  • 7

Other Profiles

International Standard Serial Number (ISSN)

  • 0036-8075

Electronic International Standard Serial Number (EISSN)

  • 1095-9203

Additional Document Info

start page

  • 1948

end page

  • 1951


  • 294


  • 5548