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To: Richard
To: Pyle <deepreef@bi*.bi*.ha*.or*>
Subject: Re: diving physio tidbits
From: shelps@ac*.ma*.ad*.ed*.au* (Prime Rat)
Cc: techdiver@opal.com
Date: Mon, 30 May 1994 10:59:05 +0930
>> Allow me to clarify, I like to surface straight to the boat.  I stay within 
>> the no-deco limits.  If you want to hang in the water decompressing, go 
>> ahead.  Around here you are very likely to be eaten by something.

>One of my personal goals in diving is to have the risk of shark attack be
>the most hazardous aspect of the dive.  This is not to say that I want to

A worthy goal.

>Having said that, I feel compelled to assert that the statement "Around
>here you are very likely to be eaten by something." is a bit of a stretch
>- even if "Around here" refers to southern Australia. Yes, people do get
>eaten by white sharks (or, "white pointers", as you call them), but I have

Carcharodon carcharias (The Great White, or White Pointer) has eaten (not 
just attacked) 1 member of the dive club of which I am a member (serindipity 
only prevented me from going on THAT particular club dive), 1 
semi-professional scallop diver and 1 snorkel diver in South Australia.  I 
won't count deaths outside SA, such as the diver in Tasmania taken while 
swimming with seals.  Non diver deaths include only one surfer that I am 
aware of (although that may have been a Bronze Whaler). I won't mention 
Rodney Fox.

>to say that, unless the threat of a big hungry shark is immediate and obvious,
>you are probably enhancing your chances for a long and healthy life more
>by pausing at a few meters' depth after ANY dive.

I agree, except at places where Carcharodon carcharias are known to 
frequent, such as the Aldinga Reef or the Stanvac Barges, I prefer to get 
back into the boat.

>Just some ramblings from a diving neurophysiologist...

/Rat


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shelps@ac*.ma*.ad*.ed*.au* | Stephen Helps                 Ack!  ___/|
FAX   (08)232-3283              | Anaesthesia & Intensive Care        \O.o|
Voice (08)224-5495              | University of Adelaide             =(___)=
                                | ADELAIDE, 5005, South Australia       U
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Repugnare ut detur vacuum sive in quo nulla plane sit res.
(That) it is contrary to reason to say that there is a vacuum or space in
which there is absolutely nothing.
	DESCARTES 1596-1650                                        
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