Re: More on diving penguins

Subject: Re: More on diving penguins
From: Shane Raidal <>
Date: Wed, 01 Apr 1998 11:15:37 +0800

At 07:26 AM 4/1/98 +1000, you wrote:
>>>Interesting! This suggests that this type of metabolic depression may also
>>>combine with respiration in limiting the duration of a dive. 

I cannot agree with this conclusion.  During exercise even mammalian
athletes divert blood flow away from the skin and alimentary systems to
supply the skeletal muscles, heart and brain.  This is the reason why you
should not eat much during or immediately after exercise. There is no need
for a counter-current mechanism, the blood supply is just shut off to these
non-vital organs - hence a drop in temperature.  Of course catching a cold
fish wouldn't help much either!

Shane Raidal  BVSc PhD MACVSc 
Lecturer in Veterinary Pathology
Veterinary and Biomedical Sciences
Murdoch University               phone:  +61  8  9360 2418
Perth,WA, 6150                           fax:  +61  8  9310 4144  

On average - all people have less than two legs.

<Prev in Thread] Current Thread [Next in Thread>

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU