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strange kind of a ciliat

 
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ralfwagner



Joined: 30 May 2006
Posts: 8
Location: Germany, Duesseldorf

PostPosted: Wed May 31, 2006 10:59 am    Post subject: strange kind of a ciliat Reply with quote

Hello,

I am new to this forum and I want to introduce myself with a picture of an unknown, strange kind of ciliat that I recently found in a small pond in a forest near Wuppertal, Germany:



It shows zoochlorellae and e.g. in contrast to a stentor its form is not fluctuating. The behavior is more similar to that of a dinoflagellata.

For those who are not afraid of a ~ 3 MB download per movie, I have prepared two movies (DIVX-avi-format)::

movie-1: http://home.arcor.de/dr.ralf.wagner/Bilder/ciliat-1.avi

movie-2: http://home.arcor.de/dr.ralf.wagner/Bilder/ciliat-4.avi

These movies show the strange behavior of that ciliata much better than a single foto ever could.

Does anybody know what this could be? I asked the same question already in the German Mikro-forum (http://www.mikroskopie-forum.de). The result was, that it might be a degenerated stentor. But perhaps we will find out more in this forum.


Thank you in advance for your comments.

Ralf Wagner
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rjlittlefield



Joined: 06 May 2005
Posts: 727
Location: Richland, WA, USA

PostPosted: Fri Jun 02, 2006 8:48 am    Post subject: Reply with quote

Ralf,

Welcome to this forum! Very Happy It's unusual for a new poster to go for more than a few hours without being greeted. I think your subject must have everyone pretty confused!

I looked at your videos, which are nicely done and very informative. The beast seems to be completely rigid, with well defined angular structures and what I take to be possibly a smooth oral groove. There appears to be a large zone near but not at the posterior that is largely free of zoochlorellae, barely hinted in the still picture.

I don't recall ever seeing anything like this beast, but that doesn't mean much since I barely make "newbie" in protozoa.

I strongly encourage more knowledgeable members of the forum to take a look at Ralf's videos and offer up whatever insights can be gleaned.

--Rik
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Ken Ramos
Site Admin


Joined: 04 May 2004
Posts: 4809
Location: Western North Carolina

PostPosted: Sun Jun 04, 2006 5:02 am    Post subject: Reply with quote

Greetings Ralf and welcome to the community of microscopist. Very Happy I myself cannot identify the critter and I tried to link up with your vidios but Windows would not support them for some unknown reason. I too have observed ciliates like this and often wondered myself if they were something out of the ordinary. Think

Anyway, it is great to have you here Ralf. Very Happy There are some others here who are quite more up to date on protozoans and may have a clue as to what you have photographed here. Lets hope so. Again, welcome to the community! Very Happy
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Kenneth Ramos
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Kens Microscopy
Reposts of my images within the galleries are welcome, as are constructive critical critiques.
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ralfwagner



Joined: 30 May 2006
Posts: 8
Location: Germany, Duesseldorf

PostPosted: Sun Jun 04, 2006 6:08 am    Post subject: strange kind of a ciliat Reply with quote

Ken,

if you have problems with the videos, you should install the "divx-video-codec". You can download the codec from this site:

http://www.divx.com/divx/windows/download/

I use this codec because it reaches a high compression rate combined with a good qualtiy.

---- Ralf ---
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MoRo



Joined: 21 May 2006
Posts: 4
Location: Texas, USA

PostPosted: Sun Jun 04, 2006 8:07 am    Post subject: Reply with quote

Hi

maybe you can find your ciliat on this website

http://starcentral.mbl.edu/mv5d/portal/index.php?option=com_wrapper&Itemid=50

If you do please let me know what it is.

MoRo
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ralfwagner



Joined: 30 May 2006
Posts: 8
Location: Germany, Duesseldorf

PostPosted: Tue Jun 06, 2006 11:46 am    Post subject: Reply with quote

Hello MoRo,

thanks for that link. An interesting site! Unfortunately I couldn't find my ciliata on that site.
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