Bursaria Truncatella

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Javier
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Joined: Tue May 09, 2017 11:19 am
Location: Buenos Aires, Argentina.

Bursaria Truncatella

#1 Post by Javier » Wed Jan 26, 2022 5:33 pm

Last night I observed for a while a sample in a jar, using an astronomy eyepiece as a magnifying glass. Aside from worms, and rotifers, I noticed some very big ciliates with a disctintive shape. Some of these ciliates were just beneath the surface, so I took a little dropper, placed it on that spot (while looking through the eyepiece), and took a sample of water. I placed all the water on the slide, an voilà, two big Bursaria Truncatella were swimming over the slide.

On the first section of the footage, I recorded the ciliate swimming without coverslip, since I find very interesting to observe how the ciliate moves in all directions when the coverslip isn't limiting its motion. I'm happy about how the 100 x dark-field turned out; it's isn't always easy to evaluate the right exposure and often I get under or over exposed videos.

I include some photos of the puddle (I like to call it the "magic puddle") where I get all my samples. It's a puddle that forms occasionally on an Island, after the river floods a lawn. After I few hours, the water dries out but the puddle remains for two or three days, depending on the season. The variety of micro life that I find there is incredible, including some not that common specimes.
puddle1.jpg
puddle1.jpg (128.87 KiB) Viewed 2813 times
Puddle 2.jpg
Puddle 2.jpg (200.75 KiB) Viewed 2813 times
My equipment is the usual (Amscope 120b and iPhone 5s), and the magnification used was 40 and 100 x for DF, and 200 and 400 x for BF.

Last edited by Javier on Wed Jan 26, 2022 7:23 pm, edited 2 times in total.

tlansing
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Re: Bursaria Truncanella

#2 Post by tlansing » Wed Jan 26, 2022 5:47 pm

Very nice video, Javier! Nothing like a magic puddle :D Very exciting to see such a large ciliate.

Dubious
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Re: Bursaria Truncanella

#3 Post by Dubious » Wed Jan 26, 2022 6:50 pm

Nice find and great imaging! I am very impressed with the quality of cell phone cameras these days, and what can be done with them afocally.

ScienceMatters
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Joined: Wed Dec 30, 2020 1:46 am

Re: Bursaria Truncatella

#4 Post by ScienceMatters » Wed Jan 26, 2022 7:33 pm

Excellent! I love those, especially in darkfield. Amazing detail on the 100x footage!

Javier
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Location: Buenos Aires, Argentina.

Re: Bursaria Truncatella

#5 Post by Javier » Thu Jan 27, 2022 1:47 am

Thanks tlansing, Dubious, and Sciencia Matters for your comments.

Imaging with phones using regular adapters take a low of work IME, but the outcome can be certainly rewarding.

Francisco
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Re: Bursaria Truncatella

#6 Post by Francisco » Thu Jan 27, 2022 8:13 am

Very nice!

Javier
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Re: Bursaria Truncatella

#7 Post by Javier » Fri Jan 28, 2022 1:21 am

Thanks, Francisco!

LouiseScot
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Re: Bursaria Truncatella

#8 Post by LouiseScot » Fri Jan 28, 2022 12:29 pm

Lovely, and good to see the source location too! I'll have to do some hunting this Spring/Summer :)

Louise
A Nikon CF plan 20x; A Swift 380T; A DIY infinity corrected focus rail system with a 40x/0.65 Olympus Plan, a 10x/0.30 Amscope Plan Fluor, and a 20x/0.75 Nikon Plan Apo

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RobBerdan
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Re: Bursaria Truncatella

#9 Post by RobBerdan » Fri Jan 28, 2022 8:36 pm

Nice movie and pictures of the pond.
Cheers
RB


Javier
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Re: Bursaria Truncatella

#11 Post by Javier » Sun Jan 30, 2022 12:17 pm

Many thanks Louise, Rob, and Jochen for you feedback!

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