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Western Kentucky University
EMERGENCY ALERT SYSTEM:

WKU WEATHER ALERT:

WKU offices in Bowling Green will open at 10 a.m. Friday. Classes Friday remain canceled and campuses in Glasgow, Owensboro and Elizabethtown/Ft. Knox remain closed Friday. Saturday classes in Bowling Green will proceed as scheduled. Here is a link to the University’s attendance policy during adverse weather conditions. Use caution and watch for slick spots on roads and walks. 

Residence Halls remain open until noon Saturday. Bemis & Barnes have space for those who need to stay longer. Visit WKU Housing & Residence Life for more information.

The high school regional basketball tournament games scheduled for Wednesday night were canceled. Games will be rescheduled for Friday/Saturday. Follow WKU News for the latest updates. #WKUAlert

Research Projects

Photograph: Smith Lab Presentation, 2011


REU Project 12—Unique auditory adaptations in loricariid catfishes—Dr. M.E. Smith, Biology Department


Catfishes of the family Loricariidae have several structural features that have been hypothesized to have acoustical functionality. These features include a bi-lobed swim bladder that is encased in a bony capsule containing numerous fenestrae (holes). One potential benefit of having a bi-lobed swim bladder may be improvement in sound localization ability. Using operant conditioning, my students have trained loricariid catfish to come to a speaker emitting a conspecific sound and then tested their sound localization ability. They can localize sounds readily, but their swim bladder is necessary to do so. We continue to examine more directly how these structures assist in hearing in loricariid catfish.


Related Publications:

  1. Stewart, P.C.* and Smith, M.E. 2009. Conspecific sound localization in Oto-cinclus affinis. Proceedings of the Institute of Acoustics 31(1): 230-234;
  2. Smith, M.E., Stewart, P.C.*, Webb, A.L.*, and Rogers, B.D.* 2009. Sound production and localization in loricariid catfishes. Journal of the Acoustical Society of America 125(4):2487.

Back | Dr. Smith's Webpage

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 Last Modified 9/25/14