Information sur les Cachalots

From: Pete Scheifele (scheifel@uconnvm.uconn.edu)
Date: Mon Dec 04 2000 - 10:52:12 EST


Je suis étudiante à l'université de Saint
>Charles à Marseille. Et j'aimerai avoir un peu plus de détail sur le
>role,et le fonctionnement du spermaceti des cachalots.

The function of the spermaceti organ is still very controversial. In the
1970s many claimed it to be used as an "acoustic lens" to focus sound
because of its heterogeneous lipid composition in concert with internal
temperature gradients, others have claimed it as a "buoyancy comensating
organ" again, due to the relationship between density temperature and
pressure of the wax in relation to its freezing and melting points and rate
of heat exchange. Yet another function claimed has been that of a nitrogen
"sink". Al though cases have been made (individually) for each of these
claims, the actual function is as yet unknown.

Best Regards
Peter
Peter M. Scheifele LCDR USN (Ret.)
Director of Bioacoustic Research
NURC Operations Manager
Director of Marine Education Programs
National Undersea Research Center,
North Atlantic and Great Lakes
University of Connecticut
860-405-9121/9103 (Voice)
860-445-2969 (FAX)
scheifel@uconnvm.uconn.edu / acousticp2@juno.com
www.nurc.uconn.edu
http://ap.nurc.uconn.edu
http://ap.nurc.uconn.edu/cos/



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