Dave,

No the borrow area is shallower -- inside the 3rd reef.  The sand depth
between the reefs varies from 30-50' deep since it is essentially trapped
there.  Outside the 3rd reef the bottom slopes off fairly quickly to 400'
then at a more modest angle into the depths.  Dredging at these depths and
contending with a 1 to 4 knot gulfstream are not practical.  In addition,
the sand outside that reef is fairly shallow and very coarse and rocky and
useless as beach sand.

Congratulations on the dalli -- a rare find here in Florida.

Wayne Harland
[log in to unmask]
"The trouble with doing something right the first time
is that nobody realizes how difficult it really was."
----- Original Message -----
From: "David Kirsh" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, November 21, 2002 1:19 AM
Subject: Re: Conus at Dania Florida


> Thanks for the detailed information, Wayne. I believe the depth of the
> dredged sand is 100-140 feet. Is that right?
>
> I am looking over some of the micros from my second visit to JU Lloyd.
Among
> others, I found four Cyclostrema cancellatum, a second Cirsotrema dalli (I
> want my dalli!), Vexillum cubanum, 2 more worn Crassispira adamsi (deemed
> rare), and several more Viridrillia cervina.
>
> I will be adding to my list of new-to-me species fairly soon. (I sent of
> list of 38 to Conch-l some months ago).
>
> Save some of the drift for us out-of-staters, folks!
>
> David Kirsh
> Durham, NC
>
>
> > From: Wayne Harland <[log in to unmask]>
> > Reply-To: Conchologists of America List <[log in to unmask]>
> > Date: Wed, 20 Nov 2002 22:46:48 -0500
> > To: [log in to unmask]
> > Subject: Re: Conus at Dania Florida
> >
> > Without seeing the Conus in question and from the original description
the
> > most logical choices would be 1. Conus flavescens, 2. Conus attenuatus,
3.
> > Conus mindanus, 4. Conus patae, 5. Conus jaspideus.
> >
> > The "borrow area" for the Dania beach reclamation project lies between
the
> > 2nd & 3rd reef structures off Dania.  These reefs roughly parallel the
> > shoreline and crest at about 40' for the 2nd reef & 60' for the third
reef.
> > The distance between the two is about 700 yards.  The areas between
these
> > reefs are clean sand with virtually no growth.  As the beach areas erode
due
> > to wave action the sand migrates back out to sea.  The reason they call
it
> > reclamation is they are just putting the sand back up on the beach where
it
> > "belongs".  Some of us say that if it "belongs" there it would stay
there.
> >
> > The get back to the Conus  -- all the species I've listed are recent
species
> > and can be found alive off south Florida.  C. flavescens, C. mindanus,
and
> > C. jaspideus are routinely found on sand at night here.  C. patae is
more
> > cryptic and associated more with live reef but many dead specimens have
been
> > found near reef areas in sand and reef rubble.  I've heard of C.
attenuatus
> > being found live off SE Florida in the 70's and early 80's but none
> > recently.  The possibility of these being true fossil species would be
> > somewhat remote since these current offshore reef structures are
> > comparatively recent (i.e.. less than 100,000 yrs old).
> >
> >
> > Wayne Harland
> > [log in to unmask]
> > "The trouble with doing something right the first time
> > is that nobody realizes how difficult it really was."