Hi, everyone!
I've got a few comments on working with microshells, which are plentiful here on Jeju Island.
When you are collecting micros, don't forget the "algal turf" (bryozoa, branching coralline algae, and short, thick seaweeds) which often covers rocks exposed at low tide. This can often be a good place to collect live micros. Simply tear off a bagful of the turf and take it home for processing.
Also, rock brushings can be quite productive, using a moderately stiff brush and a bag to hold the brushings. I use a shoe brush and a large ziplock bag. I have found that, although the tops and sides of the rocks are good, the bottoms of the rocks may hold the most micros. One person can brush fairly well, but a two-person operation, one to hold the rock and the other to brush and hold the bag, is much more productive. I have obtained many micros, live and dead, using this method.
Also, if time permits, when you find a good driftline that contains micros, take time to remove the larger shells and fragments, and any other material, before you sift for micros. Whenever possible, take a small backpack to hold your sample and sieves, small kitchen sieves with at least two different-sized meshes, Sift only small samples, dividing them into separate bags, so that when you sort out the micros later there will be a greater percentage of them.
Collecting micros can be an enjoyable experience; the real work begins when you start to identify them.
All the best from Korea!
Ron
On Sun, 2/22/15, Callomon,Paul <[log in to unmask]> wrote:
Subject: Re: [CONCH-L] Screening
To: [log in to unmask]
Received: Sunday, February 22, 2015, 12:16 PM
#yiv4814661984 P
{margin-top:0;margin-bottom:0;}
Something
that's worked for me in the past is to go to a hardware
store and buy a roll of mosquito netting for windows. Cut
some sheets and take them with you - it weighs nothing.
When you get there, find an old tin can and a rubber band.
Presto - field sieve.
Paul
Callomon
Collection Manager, Malacology, Invertebrate Paleontology
and General Invertebrates
Academy of Natural Sciences of
Drexel University, Philadelphia
[log in to unmask] Tel 215-405-5096 - Fax
215-299-1170
From: Conchologists List
[[log in to unmask]] on behalf of David Campbell
[[log in to unmask]]
Sent: Saturday, February 21, 2015 9:38 PM
To: [log in to unmask]
Subject: Re: [CONCH-L] Screening
To separate the truly micro (<1 mm) from
silt and clay, a very lightweight sieve option is a nylon
stocking. Also pretty good as a plankton net - stick a
plastic jar in the toe, put a rubber band around the top of
that jar, stick a can with
both ends cut off at the knee to hold it open and rubber
band that in place, tie a string through the top end of the
can (punch some holes in the sides).
On Sat, Feb 21, 2015
at 7:14 PM, Susan J. Hewitt and/or Ed Subitzky
<[log in to unmask]>
wrote:
Both good ideas. However where I stay in the West Indies is
not a hotel or a motel or a time share. There is no-one to
receive a Fedex. I would have to greatly inconvenience a
friend or acquaintance by shipping it to them and having
them deliver it to me later.
I understand the idea of leaving stuff behind, and I do that
every time to some extent, but I prefer to re-use rather
than discard if at all possible.
Another advantage of packable sifters etc is that if I am
lucky enough to get a day trip to another island, I can put
the equipment in my backpack and take it with me.
Susan
> On Feb 21, 2015, at 6:16 PM, Martin Eastburn <[log in to unmask]>
wrote:
>
> I worked in industry - a high tech - for many years.
>
> Our travel was often not planned but when it was, we
often shipped tools / equipment / manuals etc
> by Fed EX to the hotel we were staying and it would be
there when we got there.
>
> Another concept to consider - drop ship it to the
hotel/motel/timeshare and use it while there and discard.
> Bring back the booty but not the dredge needed to find
it.
>
> Martin
>
> On 2/21/2015 3:34 PM, Susan J. Hewitt and/or Ed
Subitzky wrote:
>> I too am very interested in hearing people’s
suggestions for screening as a way to concentrate micros
from beached marine material, rather than taking whole
sediment samples home. I fly to my destination(s), and
therefore I can’t take much in the way of
bulky or heavy equipment. I also never know what is going
to be available in the kitchen of the house I will be
staying in.
>>
>> I do always take a couple of metal kitchen sieves
with different-size meshes.
>>
>> That Amazon soil sieve set looks promising...
>>
>> I am also interested in hearing from anyone who has
had luck in paying/bribing folks who work in a scuba
business to grab you a good sample of sediment from the
bottom off the edge of a coral reef underwater.
>>
>> Thanks,
>>
>> Susan
>>
>>
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Box 7270
Gardner-Webb University
Boiling Springs NC 28017
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