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Ken Ramos

Joined: 27 Jul 2006 Posts: 7076 Location: lat=35.4005&lon=-81.9841
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Posted: Sat Oct 07, 2006 4:19 pm Post subject: Collecting Water Critters |
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For those who have questions as to how to go about collecting samples from ponds for the observation of protozoa and other microorganisms, the reply in this thread by our very own Charlie Krebs will be of utmost importance, as well as the replies to the post by some of our other distinguished members on how they go about collecting water critters and many thanks to PeglegOS for bring the subject to the forum.
http://www.photomacrography.net/forum/viewtopic.php?t=442 |
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Cyclops

Joined: 05 Aug 2006 Posts: 2968 Location: North East of England
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Posted: Fri Oct 20, 2006 1:28 pm Post subject: |
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I remember as a kid I would get an old pair of tights(hosiery),cut a length off and attach a small pickle jar to one end.
I would then travel down to the canal or brook and see what I could find. I had a toy 'scope at the time, a xmas gift from my mom,and tho it was all plastic and dark it got me hooked.(I would love to find the same scope now to keep for my kids)
There was another method I'd use but I cant quite rememeber it all!
Basicaly I would collect some moss or soil from the garden, put it into a tub with a lamp above and a funnel below. anything small would migrate from the heat of the lamp and fall down the funnel! _________________ Canon 30D | Canon IXUS 265HS | Cosina 100mm f3.5 macro | EF 75-300 f4.5-5.6 USM III | EF 50 f1.8 II | Slik 88 tripod | Apex Practicioner monocular microscope |
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rjlittlefield Site Admin

Joined: 01 Aug 2006 Posts: 19546 Location: Richland, Washington State, USA
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Posted: Sat Oct 28, 2006 11:15 pm Post subject: |
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Cyclops wrote: | There was another method I'd use but I cant quite rememeber it all!
Basicaly I would collect some moss or soil from the garden, put it into a tub with a lamp above and a funnel below. anything small would migrate from the heat of the lamp and fall down the funnel! |
Google "berlese funnel" and I'll bet it will all come back to you.
--Rik |
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Cyclops

Joined: 05 Aug 2006 Posts: 2968 Location: North East of England
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Posted: Sun Oct 29, 2006 11:22 am Post subject: |
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Google "berlese funnel" and I'll bet it will all come back to you.
--Rik[/quote]
Cant say I remember it being called that but what i found on this website looks a little like what i would have done!
http://www.cals.ncsu.edu/course/ent591k/berlese.html
Thaks for remionding me Rik!
Oh why did i stop.......... _________________ Canon 30D | Canon IXUS 265HS | Cosina 100mm f3.5 macro | EF 75-300 f4.5-5.6 USM III | EF 50 f1.8 II | Slik 88 tripod | Apex Practicioner monocular microscope |
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PeglegOS

Joined: 26 Aug 2006 Posts: 107 Location: Parma Heights, Ohio
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Posted: Sun Oct 29, 2006 12:48 pm Post subject: |
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I'm going to get one of these Seperatory Funnel Sets soon:
You allow the water to sit for a while, then siphon from the bottom. Will give you a concentrated solution. _________________ Revelation III Compound
Nikon D50
Canon A10
Canon A1
Mamiya RB67 Pro |
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Jbailey

Joined: 05 Jul 2008 Posts: 520 Location: Wisconsin, USA
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Posted: Thu Jan 01, 2009 1:07 pm Post subject: |
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I use a plastic turkey baster syringe to draw samples from the top scum or bottom detritus.
I also carry a pair of large surplus haemostats for retrieving algae like Spirogyra.
For crustations, I made a simple sieve about 3 inches in diameter from fine mesh net cloth at the end of a long plastic handle.
Empty instant coffee jars are used to bring the samples home. |
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Harold Gough
Joined: 09 Mar 2008 Posts: 5787 Location: Reading, Berkshire, England
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Posted: Sun Jan 15, 2012 3:50 am Post subject: |
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The Berlese Funnel is also known as the Tullgren Funnel:
http://en.wikipedia.org/wiki/Tullgren_funnel
For I used such funnels for (one method of) collecting mites and springtails for study. You can place water in the collecting vessel if you want live material. A glass funnel is probably more slippery than plastic so that there is less chance of escape.
Harold _________________ My images are a medium for sharing some of my experiences: they are not me. |
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flyer2o12

Joined: 09 Jan 2012 Posts: 200 Location: Ireland
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Posted: Sat Feb 11, 2012 7:33 am Post subject: |
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Here is a scan I took from one of my books: The Amateur Naturalist by Gerald & Lee Durrell
The page illustrates some methods for catching small bugs.
 _________________ https://www.instagram.com/electron_micronaut/ |
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