HDTenEightyP/NetNews huggingface dataset:
From: spindler@rcf.rsmas.miami.edu
Subject: Fish Kill Seen After Andrew
Reply-To: spindler@rcf.rsmas.miami.edu
Organization: RSMAS
Date: Tue, 1 Sep 92 15:28:01 GMT

The following message was posted to the OMNET OCEANS BB and I thought you folks
might find it of interest.

----------------------------------------------------------

Description: ANDREW FISH KILL                                     
From: M_Claverie   Date:     1-SEP-1992 09:45

From: M_CLAVERIE
  Hurricane Andrew left 20 miles of beaches strewn
with dead fish.  Has anyone seen anything like this
before, or have any information on the phenomena?

  The fish were observed along the Point au Fer and
Four League Bay beaches the Friday after Andrew
came ashore in Louisiana. Both beaches are just
East of the NW track of the eye. The former is
NW-SE on the Gulf of Mexico, the latter is NW-SE
along the NE shore of the bay behind the Point au Fer
island. The fish were mixed with loose grasses in a
band about at the high storm tide mark parallel to
the waterline. From the stage of decomposition, the
fish were judged to be less than 48 hours old. These
factors lead to the theory that they were deposited
on the beach after, rather than during, the storm.

  Preliminary estimates put the number at 7M fish.
Of these, 5.5M were Menhaden. The remaining 1.5M
were red drum, speckled trout, croaker, black drum,
etc. Species mix on the two beaches seem to differ
as should be expected from Gulf and bay.

  One theory is that the storm caused the fish into
the "dead zone" (oxygen depleted water) they usually
avoid. Such dead zones are well documented along
the Louisiana coast this time of year. All had
flared gills - a symptom of respiratory stress.

  If this phenomena has been observed in other areas
where "dead zones" do not exist, then that theory
may be invalid. The contrary would also hold true.
Another theory is that the fish may have been pounded
to death by the storm. For this reason, any history
or comparison would be appreciated.

 M. Claverie
 504/524-5416

--------------------
Todd Spindler                                  
TSpindler@rsmas.miami.edu                 RSMAS/MPO  University of Miami

Newsgroups: rec.scuba
From: sdodd@OES.ORST.EDU (Stephen M Dodd)
Subject: Re: Information about advanced deep diving course wanted
Organization: Oregon Extension Service, Oregon State University, Corvallis, Or.
Distribution: usa
Date: Fri, 4 Sep 1992 07:47:56 GMT

>
>If you take the PADI "Deep" Diver speciality and your instructor does not spend
>at least 2 hours in "class room" time discussing this, please let me, or anyone
>else who lists themselves as a PADI member, know.  Or contact another PADI
>instructor in your area.  The PADI standard is for a minimum of two hours of
>class room instruction (I think, no manual at work), and I haven't seen many
>instructors get by with less than 4 hours.  I'm sure that NAUI and YMCA have
>similar standards.  Night diving I could see just going out and diving, but
>anything deep (more than a single breath away) can get you seriously killed, or
>worse.
>
   And suppose you were to be informed about an instructor who didn't
   do as you suggest.  What would you do about it?  I bet there is
   nothing you could do about it beyond waving your finger at them.  
   
   I am serious.  I hear this all the time.  If you hear of any
   "official" instructor who doesn't follow the rules, tell me about it
   and I'll fix him good.  Yet there are few if any evident safeguards
   built into the system.  You'd have to prove the "violation", and you
   could get sued for even alleging it without substantiation. 
   Even another instructor from the same agency can do next to nothing
   with a simple tale from a student.

   I know of cases where known violations continue for years even after
   such reports.  I know of instructors who openly put down other
   instructors in their classes without being able to take any real
   action.

   All this because the whole thrus of diving agency legal structure is
   designed to limit liability for what their people have organized.

   Steve
-- 
- Stephen M. Dodd, System Analyst, Oregon Extension Service
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sdodd@oes.orst.edu          Internet          Oregon State University
503-737-3550                                  Corvallis, OR 97331
From: story@sgi.com (David (Duis) Story)
Newsgroups: rec.scuba
Subject: Re: BOUYANCY CONTROL WITH DRY SUITS
Date: 27 Aug 92 19:33:53 GMT
Organization: Silicon Graphics, Inc.

In article <92239.222629FKK@SLACVM.SLAC.STANFORD.EDU> FKK@SLACVM.SLAC.STANFORD.EDU writes:
>I recently posted a comment about keeping 8 pounds on my BCD attached with
>clevis pins which could be removed in a minute or so.
>
>I got one response from one person that this was too long.  I would like to
>expand the discussion and see where it goes.

[Good comments elided]

There was an article in NAUI Sources a while back that discussed using
two weight belts to distribute weight for comfort and to allow
controlled ascents by ditching just one.  This also allowed one
permanently rigged weight belt to be set up for skin diving and one
for adding when scuba diving.

Sounds like you have a similar system.  It seemed a reasonable
suggestion were the extra hassle (one more thing to keep track of,
lose, forget, break, etc.) warranted by hassles saved.

I think I'll keep using a single zippered pouch weightbelt.  It keeps
my BC light and drag-free, allows me to switch weighting for different
tanks by unzipping and removing or inserting pouches, and is easy on
my boat floor when dropped.

Cheers,

David Story                        NAUI AI Z9588, PADI DM 43922, EMT
story@bent.wpd.sgi.com           Better diving through inflatables.
Newsgroups: rec.scuba
From: pyron@skndiv.dseg.ti.com (Dillon Pyron)
Subject: Re: ?diuretics and diving
Reply-To: pyron@skndiv.dseg.ti.com
Organization: TI/DSEG VAX Support
Date: Fri, 28 Aug 1992 13:54:37 GMT


In article <1992Aug27.222014.7705@hplabsz.hpl.hp.com>, peterson@hpl.hp.com (Chris Peterson) writes:
>In article <1992Aug27.142501.1@sscvx1.ssc.gov> schludermann@sscvx1.ssc.gov writes:
>>
>>What are the considerations when using diuretics and diving. I am aware of the
>>alteration of fluid levels in the body. Would I be limited to shallow diving
>>above 33 ft?.
>>
>
>#1.  See a doctor who *knows* about diving.  (If a local scuba shop can't
>     recommend someone, call DAN 919/684-2948 for references.)
Shouldn't this be in the FAQ?
>
>#2.  Anything that causes dehydration should be rigorous avoided when diving 
>     (insufficient water intake, coffee, tea, alcohol, excess "Gatorade", etc.)
>     There is anecdotal evidence that dehydration increases the chances of
>     barotrauma.
I had been led to believe that dehydration led to elevated risk of DCS.  But
regardless of who is right, it is bad news.
>
>#3.  Diuretics alone aren't a "contra-indication to diving".  However, the
>     reasons for taking diuretics *may* be a reason to limit or to stop
>     diving (again, check with your doctor).    
>
>I take mild diuretics -- under my diving doctor's supervision -- to control
>slightly elevated blood pressure (hypertension).  I regularly consume about
>6-8 glasses of water a day, and increase this to 8-16 glasses when diving
>this *can* create a bit of a problem when I'm using my dry suit :-). 
Just keep telling yourself "This is a dry suit, this is a dry suit" :-)
>-- 
>Chris Peterson                                     Hewlett-Packard Laboratories
>                                                    Research Computing Services
>                                                              Palo Alto, CA USA 
>                                                            peterson@hpl.hp.com
>
--
Dillon Pyron                      | The opinions expressed are those of the
TI/DSEG Lewisville VAX Support    | sender unless otherwise stated.
(214)462-3556 (when I'm here)     |
(214)492-4656 (when I'm home)     |"Do something different, DISAPPEAR"
pyron@skndiv.dseg.ti.com          |  "DISAPPEAR"
                                     _A Day On Earth_
                                     Brave Combo

Newsgroups: rec.scuba
From: peterson@hpl.hp.com (Chris Peterson)
Subject: Re: Tank Carrying and such
Date: Thu, 3 Sep 1992 22:24:23 GMT
Organization: Hewlett-Packard Laboratories, Palo Alto, California

In article <keulen.715499441@possum> keulen@possum.csu.murdoch.edu.au
(Mike van Keulen) writes:
>grot@bass.bu.edu (henry nadig) writes:
>
>>3)	Are tank boots really neccessary?  They always seem to fall off, and
>>	would seem to trap water against the side of the tank...
>
>>	Oh, the tanks are aluminum 80's
>
>How about for old-style steel tanks?  They're more subject to corrosion than
>aluminium ones ...
>
	Boots for steel cylinders provide a means for standing the
	cylinders upright.  Unlike aluminum cylinders with flat bottoms
	steel cylinders usually have rounded bottoms.  The boot also
	protects the surroundings (pool deck, boat deck, etc) from nicks
	and cracks made by the cylinder.

	Most boots are "self-draining".  If you're still concerned 
	about corrosion under the boot, remove it periodically and soak
	the boot and cylinder in fresh water to clean them.  Replace
	the boot only after both the boot and cylinder are thoroughly
	dry.

	Be sure that the boot (on both steel and aluminum cylinders) is
	removed prior to its annual visual inspection.  Remove it yourself
	beforehand if necessary.
-- 
Chris Peterson                                     Hewlett-Packard Laboratories
                                                    Research Computing Services
                                                              Palo Alto, CA USA 
                                                            peterson@hpl.hp.com
Newsgroups: rec.scuba
From: m14494@mwvm.mitre.org (Mike White)
Subject: Re: PEEING IN A WETSUIT.
Organization: The MITRE Corporation
Distribution: na
Date: Tue, 1 Sep 1992 20:08:14 GMT

Michael van Keulen writes:
> Basically I pee in my suit to extend the time I have underwater...

I've never understood why this works. I know it does, as I've done my
share of wet suit peeing.  But it seems to me that you're just taking
heat out of the inside of your body (bladder) and applying it to the outside
of you body (skin).  You will *feel* warmer, because you skin has heat
sensing thingies in it, but the net heat content of your body has gone 
down overall (as the heat from the pee leaks into the open water). 

************************
* These are my opinions only.*
************************
From: groves@tcville.edsg.hac.com (Gillian Groves)
Newsgroups: rec.scuba
Subject: Guam hurricane?
Date: 1 Sep 92 15:30:52 GMT
Reply-To: groves@tcville.edsg.hac.com
Organization: Hughes Aircraft Co. EDSG Signal Processing Lab

I saw on the news last night that a hurricane hit Guam in the last few days.
Does anyone know of its effect in the area of Truk? 

Thanks,

G. K. Groves
-- 
Hughes Aircraft Co.	    voice:  (310) 616-5595
Signal Processing Lab	    smart:  groves@tcville.hac.com
PO Box 902, EO/E01/B103	    dumb:   groves%tcville@hac2arpa.hac.com
El Segundo, CA 90245	    uucp:   hacgate!tcville!groves
Newsgroups: rec.scuba
From: teshima@uhunix.uhcc.Hawaii.Edu (A. Lani Teshima)
Subject: Re: gear carried on a dive
Organization: University of Hawaii
Date: Mon, 31 Aug 1992 03:40:37 GMT

In article <1992Aug30.113530.1@cc.curtin.edu.au> smckenzi01@cc.curtin.edu.au writes:
>It's possible to have utility pockets added to full length wetsuits so that
>gear you may possibly need is not a burden to carry and does not in itself
>make the dive less safe. I am strongly in favour of diving as simply as
>possible and believe excess gear is just more gear to lose/break/rely upon.
>I see a lot of divers who store gear in their catch bags and then clip this
>bag to their weight belt. This seems like asking for it, as the first thing I
>would "lose" in an emergency would be my weight belt, and most of these clips
>are of two handed release type (Yuk !).

A rule I learned as gospel from my dive instructor was "no danglies!"
That meant nothing dangling out of control, including octo, gauges,
bags, etc. He devised an octo holder with a zip tab and rubber hosing.
You made a small loop of rubber hosing, tied the ends of the loop with
the zip tab, which went on one of your D-rings. You stretch the loop
around the octo mouth piece. In an emergency it would pull off in a
second. You zip tabbed a bras marine clip to your
gauge, which clipped onto your other d-ring. You also zip tab brass
marine clips to your weight belt. This is how you latch catch bags and
flashlights, etc. if you want your hands free. The marine clips are
released with a thumb and a finger or two--not two hands as you
mention. Also, have a lanyard securely fastened on everything--camera
body (with a cyalume stick zip tabbed to the strobe arm for night
dives), dive lights, writing boards, etc. 
This way, you have your hands free, and things don't get tangled
(those are "tanglies"--just as bad as "danglies"). You also become
more aware of your underwater environment as your gear is less likely
to damage coral this way.

--
A. Lani Teshima (teshima@uhunix.uhcc.Hawaii.edu)       o | /_/_/ "Sea Hare"
Student, UH School of Library & Information Studies     o|<0_0>--------*
A small mind is easily filled with faith.                 \=^-| |____| | 
Blessed is a mind too small for doubt.                        \_}B   \_}B
From: story@sgi.com (David (Duis) Story)
Newsgroups: rec.scuba
Subject: Re: How about the Oceanic Datamax?
Date: 26 Aug 92 22:57:10 GMT
Organization: Silicon Graphics, Inc.

In article <1992Aug26.172231.29835@unlv.edu> grover@isri.unlv.edu writes:
>In article <1992Aug25.160036.677@ccsvax.sfasu.edu>, Kelly Cunningham  (Random Deviate)) writes:
>) It would be nice if the thing activated automatically.
>
>I wonder about this.  Turning the machine on causes it to adjust to
>current altitude.  

Not true on most computers.  Only the Orca Delphi/EIT Phoenix does
this.  Most computers are adjusted for a fixed altitude and don't
change their M-values automatically at altitude.  This includes the
Oceanic Datamax, Sherwood Source, MicroBrain, Suunto SME-ML, Suunto
Solution, Orca SkinnyDipper, Marathon, and Edge, and others.

>Now, if the machine did not need to be turned on,
>wouldn't it have to be constantly monitoring the current altitude to
>be able to adjust for it?  If so, it seems to me that the batteries
>would not last nearly as long (as a model that must be turned on).

The Uwatek Swiss Pro (Aladin Pro, Monitor II) does just this.

>Anyway, how hard is it to remember to turn the computer on?  

Not too hard, but the consequences of forgetting can be pretty bad.

And with the Datamax Sport, I found that the computer had turned
itself off almost every morning after an overnight surface interval,
so it had to be turned on most days on a multi-day liveaboard.

Cheers,

David Story                        NAUI AI Z9588, PADI DM 43922, EMT
story@bent.wpd.sgi.com             Better diving through tolerance.
Newsgroups: rec.scuba
From: Terry.Baldridge@bbs.oit.unc.edu (Terry Baldridge)
Subject: Re: Tank Carrying and such
Organization: Extended Bulletin Board Service
Date: Fri, 4 Sep 1992 20:53:41 GMT

In article <1992Sep3.222423.10807@hplabsz.hpl.hp.com> peterson@hpl.hp.com (Chris Peterson) writes:
.....list of good reason for tank boots deleted........
>-- 
>Chris Peterson                                     Hewlett-Packard Laboratories
>                                                            peterson@hpl.hp.com

One other reason for tank boots that wasn't mentioned here is that it
stops a tank from rolling.  Not saying that a booted tank should not
be secured, but it helps alot.

terry
--
terry.baldridge@bbs.oit.unc.edu   ---   xp2729@lsuvm.sncc.lsu.edu
                BMW: The Ultimate RIDING Machine


--
   The opinions expressed are not necessarily those of the University of
     North Carolina at Chapel Hill, the Campus Office for Information
        Technology, or the Experimental Bulletin Board Service.
           internet:  bbs.oit.unc.edu or 152.2.22.80
Newsgroups: rec.scuba
From: cjb@canopus.Stanford.EDU (Cecil Bloch)
Subject: Re: Mtn View area dive shop?
Reply-To: cjb@vega.stanford.edu
Organization: DSO, Stanford University
Date: Wed, 26 Aug 92 16:37:30 GMT

In article <l9mpqbINNn2j@appserv.Eng.Sun.COM> dmk@noho.Eng.Sun.COM (David  
Kahn) writes:
>  >>>>> Note: "ba" distribution <<<<<<
> 
> I need a recomendation for a Dive shop in the Mountain View area.
> (or anywhere reasonably near Mountain View.)
> 
I can highly recommend Wallin Dive Store in Redwood City, just off 101 at  
Whipple.  I've been dealing with them for 5 years now, have got a lot of  
gear through them, and have taken various certifications there as well.  
The staff are very helpful and friendly, and they have really excellent  
post-sales support and service.  They always take time with you and never  
try to sell you something questionable or useless.  I've had experience  
dealing with several other dive stores in this general area as well as San  
Francsico and, frankly, there's no comparison.  Even if Wallin's is a  
little out of your way, its worth the trouble.  Their selection is not  
quite as wide as you might find in other stores - but for good reason.   
They do not carry what they feel to be inferior or unreliable lines or  
items.  If you have any questions about gear, talk to Ed LaRochelle, their  
general manager.
Go north up 101 to Whipple (just past Woodside), and Wallins will be hard  
right as you come off the ramp. There's a huge scuba flag flying -- you  
can't miss it.
Newsgroups: rec.scuba
From: adb@herboid.uucp (Anthony DeBoer)
Subject: Re: Delphi -> Phoenix Trade-Up Report
Organization: Linda's Dragon Memorial Society
Date: Thu, 27 Aug 1992 22:52:44 GMT

Greg Ryan, g10b, xtn 4809 <gregr@cs.su.oz.au> writes:
> [ on sub-topic of independant twins vs. manifolds ]
> ...
>From what I've read and discussions I've had with US cave divers, the manifold
>system seems more popular in the US.

From a conversation I had with a US-trained cave diver several months ago,
the main issue here is "task loading".  They don't want to have to remember
to switch regs mid-dive.  There does seem, though, to be a preference for
the new Sherwood manifold with the isolation valve in the middle.  I know
I wouldn't want to go down deep with an older dual-outlet manifold without
this feature; it leaves you with a few single points of failure that could
leave you out of air.
-- 
Anthony DeBoer                       | Why watch TV, when Netnews provides
adb@herboid.uucp | adb@geac.com      | 100% of your daily requirement for
uunet!geac!herboid!adb               | trivia and meaningless entertainment?
From: grot@bass.bu.edu (henry nadig)
Newsgroups: rec.scuba
Subject: Tank Carrying and such
Date: 3 Sep 92 00:48:50 GMT
Organization: Boston University

Having just bought tanks, I am in a position to now care about tanks. and
I had a fiew questions.  

1)	Is it bad or harmful to carry tanks by the valve?  Is it really
	Better to buy a tank carrying thingy? I have no problem carrying
	it by the valve, so I was just curiour.

2)	Is it bad for the tank to put stickers on it, I keep thinking of
	the time I repainted my racing bike, and rust developed under stickers
	because I couldn't see the water getting trapped there.

3)	Are tank boots really neccessary?  They always seem to fall off, and
	would seem to trap water against the side of the tank...

	Oh, the tanks are aluminum 80's

Thanks in advance...

	Dave Nadig
	grot@bu-pub.bu.edu
From: wall@hel4.brl.mil (Jeff Wall)
Newsgroups: rec.scuba
Subject: Re: depth in the US of A
Date: 3 Sep 92 15:16:00 GMT
Organization: U.S. Army Human Engineering Lab  Aberdeen, MD

In article <pbp8i4s@fido.asd.sgi.com> leej@sgi.com (Lee Jones) writes:
>In article <1992Sep2.164617.26994@news.miami.edu> spindler@rcf.rsmas.miami.edu
writes:
>>In article <guido.715432167@sun-3>, guido@sun-3.cs.uct.ac.za 
>>(Guido Zsilavecz) writes:
>>>Question: how do US divers measure pressure at depth? bar/atmospheres
>>>of PSI?
>>
>>We generally work with atmospheres absolute (ATA), with occasional references
>>to PSI just to mix it up a little.  1.0 is a lot easier to remember than 14.7
>> 
>
>Brings up a good question.  I have a question on my OWI test
>that asks something like "If you're 66 ft. deep in Monterey
>Bay, what is the ambient pressure?" Multiple guess answers are various
>numbers in PSI's.  Bottom line, my student has to remember that it's 
>14.7 psi/ATM, has to allow for the one at the surface, and has to be
>able to multiply 3 * 14.7.  
>
>Do you think this is a useful question to ask?  If not, why not, and how
>would you change the question to make it more useful?  Remember, this
>is a NAUI Open Water I test.  These people are not divemaster candidates
>(nor are they quickie resort course students :-).
>
>Regards, Lee
>

I think that is an excellent question.  A diver shouldn't be working on a Dive
Master cert to understand this type of concept so crucial to all aspects of
diving from using a lift bag to air embolisms.

Jeff Wall
wall@hel4.brl.mil
Newsgroups: rec.scuba
From: mayne@pipe.cs.fsu.edu (William Mayne)
Subject: Re: depth in the US of A
Reply-To: mayne@cs.fsu.edu
Organization: Florida State University Computer Science Department
Date: Thu, 3 Sep 92 19:40:32 GMT

In article <Btzyv2.1tu@kings.demon.co.uk> lls@kings.demon.co.uk (Lady Lodge Systems) writes:
>In article <1992Sep2.173258.16155@mailer.cc.fsu.edu> mayne@cs.fsu.edu writes:
>>In article <1992Sep2.164617.26994@news.miami.edu> spindler@rcf.rsmas.miami.edu writes:
>>>
>>[Stuff deleted] An advantage of the US
>>method is that when you are comparing the capacity of tanks, e.g. an
>>aluminum 80 (3000 psi) versus a steel 72 or 95 (at 2640 psi) or a Genesis
>>80, 100, or 120 (3500 psi), you don't have to convert because of the
>>difference in working pressure.
>
>But it makes it less than obvious to calculate the available gas in a
>partly filled tank (and how many fills are to exactly the working pressure?).
>
>With SI units it's easy.....
>
>Say a 10 liter cylinder pumped to 163bar, multiply the pressure by capacity
>and you've got 1630 liters of air.
>
>How much air do you have in a 95 cuft cylinder pumped to 1850 psi ? (rhetoric
>question as you can't answer this without more info)

Good point, and I'm glad you pointed it out. To answer your rhetorical
question, you should know the working pressure of your tank, which is
2640 for a steel 95. Then it is not too hard to figure the volume at
another pressure, 95*(1850/2640) standard cubic feet in the example.
This is taught in classes (good ones at least). A slight problem is that
the claimed volume of a tank may not be exactly right, but that is a
problem of truth or accuracy in marketing rather than in the system.
It generally isn't any worse than the difference between bar and
atmosphere which you ignore.

An easier method is to pre-compute a constant K with units of ft^3/(100 psi)
for each type of tank you use. (Substitute bar or whatever gauge units
you use in the denominator and liters or whatever volume unit you want
in the numerator - see below.) Then all you have to do is multiply,
and it is easy to figure the total amount of gas in, say, double steel
104s plus an aluminum 100 stage bottle and a steel 72 deco bottle
when the steel tanks are overfilled and the aluminum is under filled.
This becomes in effect the same system as you already have with liters
and bar, adapted to the wierd archaic units we are used to using on
this side of the big pond. Your liters of actual internal volume is
just the required constant in standard liters/atmosphere, which is close
enough liters/bar.

Bill Mayne