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From: Bob Denton <BDenton_at_aquagulf.com>
subject: RE: [Paddlewise] Sharks
Date: Fri, 1 Sep 2000 15:45:45 -0400
>>>
> I have heard of one attack in FL from a kayaker who was fishing. Left a
few
> teeth in his plastic yak. 

That was Ken Johnson of Corpus Christi.  The shark bit the stern but
I do not recall Ken stating there were teeth left in the kayak (I could
be wrong, though).  I only recall his stating there were teeth "marks."  
>>>

No, it was a guy in Pompano Beach. I've forgotten his name.

>>>
> I was practicing rolling in the Intracoastal and as I rolled up, a large
> Bull Shark cruised by, just under the surface, about 2 feet from the end
of
> my paddle. 

Experts never rely absolutely upon species identification by untrained 
eye witnesses.  Even experts say it is often difficult for they themselves
to 
know absolutely type shark they are looking at above water and need to have 
the animal brought on board to make an absolute id.
>>>

I've been diving this area for the past five years and have seen all the
local sharks "eye to eye" The only sharks that are common in the area are
nurse, reef and bull sharks. We also have migrating spinners in early spring
and late fall. Nurse sharks are bottom dwellers and hang out on the reef.
Reef sharks are quite rare and are never found in the brackish intracoastal
waters. In addition they are slimmer. That leaves bulls, which fit both the
description of size and bulk that I witnessed, as well as the fact that it
was in brackish water. Some friends who were diving less than a mile away
also reported seeing bulls at about the same time.

There used to be tigers in the area but they haven't been seen for more than
10 years. Occasionally a large white shark will be caught off shore, maybe
one every couple of years.

>>>
> I followed it at first because I thought it was a porpoise but
> soon saw the dorsal and paddled over to the tourists and suggested they
get
> their toddlers out of the water.

Which begs the question... if you thought it was a porpoise that passed
withing two feet of your kayak, how do you know it was a bull shark 
just by the dorsal fin (porpoises have dorsal fins... the "2nd dorsal fin"
identifies it as a possible shark (there are rare exceptions to this but 
the bull is not one).
>>>

We have a lot of porpoises here in Delray, and it's easy to tell the
difference. As I said, I was only able to identify the shark after I rolled
up and got a good look at it. It was swimming in an area where incoming
crystal clear water (100' plus vis) was mixing with tannic Intracoastal
water so it would be clearly visible for 5 or 10 seconds, then disappear
into the murk, then return into the clear water. It appeared to be looking
for fish. Some fishermen were catching tarpon not far from where I was
rolling. 

>>>
> The shark cruised around for 10 minutes then headed out the inlet. I have
> always wondered what would have happened if I blew that roll?!

If it actually *were* a shark, statistcally, nothing.  The vast majority 
of sharks are harmless.  And attacks on humans are *extremely* rare among 
those that could be harmful.  Millions of people go into the water every
year, world-wide.  However, there are only about 50-75 shark attacks 
reported annually world-wide with *maybe* 8-12 fatalaties (see
http://www.mote.org/~rhueter/sharks/attacks.phtml ).
>>>

Based on the 25 shark attacks already this year in Florida alone, I would
question those statistics. If you add South Africa, Australia and some of
the pacific islands, that would significantly increase those numbers. If you
spend some time on the local dive charter boats, you'll see a fair share of
scars, albeit, mostly on spear fishermen.

As for my situation, I believe had I blown my roll, I would have been at
least bumped or possibly "tasted". The area I was rolling in had at least
100 foot visibility at the time, so I don't know how the shark would have
reacted. Many of the Florida attacks occur in the surf where spinners and
smaller sharks are chasing fish and mistake the flash of a palm or sole of a
foot for a fish.

I used to wave ski in Cape Town, South Africa in the early 70s. The ecology
is almost identical to California. There were a lot of whites but very few
attacks because of the abundance of seals. 


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