Any idea what this web is?

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macnmotion
Posts: 523
Joined: Mon Sep 26, 2022 3:13 am

Any idea what this web is?

#1 Post by macnmotion » Tue Dec 06, 2022 11:12 am

After a few seconds, the video will shift from bright field to phase contrast where you can easily see this web. Can anyone explain what it is we're looking at?

Update: Someone has suggested this is Foraminifera. Based on some videos, the net certainly looks like it. Unfortunately, the net emanated from a thick/dark piece of algae so there was no way to see any test/shell.

Fresh water sample. 40X objective.

Thanks.


macnmotion
Posts: 523
Joined: Mon Sep 26, 2022 3:13 am

Re: Any idea what this web is?

#2 Post by macnmotion » Tue Dec 27, 2022 4:22 pm

Today (3 weeks after the original post) I found another similar organism in the same water sample. This one was wholly visible, but the net was much smaller and less visible than the one a few weeks ago. I'm adding this short video to this post to show a different look at what I believe is the same species. 40x oil objective phase contrast.


WesPau
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Joined: Tue Jan 31, 2023 5:19 am

Re: Any idea what this web is?

#3 Post by WesPau » Fri Apr 07, 2023 8:00 pm

It looks very similar to axopodia that come off of reticulomyxa. Some of them do not have that large of a center mass, and this looks very similar to the species, reticulomyxa filosa.

macnmotion
Posts: 523
Joined: Mon Sep 26, 2022 3:13 am

Re: Any idea what this web is?

#4 Post by macnmotion » Sat Apr 08, 2023 12:50 am

I've seen webs similar to your first video, with streaming in both directions, from foraminifera.

Here is my video.


Chas
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Joined: Tue Jan 19, 2021 3:11 pm

Re: Any idea what this web is?

#5 Post by Chas » Sun Apr 16, 2023 11:39 am

Macnmotion, thank you for posting these videos; I find them quite surprising.
Just to check; are these filmed at normal speed or is the video sped up ?

macnmotion
Posts: 523
Joined: Mon Sep 26, 2022 3:13 am

Re: Any idea what this web is?

#6 Post by macnmotion » Sun Apr 16, 2023 5:28 pm

Chas wrote:
Sun Apr 16, 2023 11:39 am
Macnmotion, thank you for posting these videos; I find them quite surprising.
Just to check; are these filmed at normal speed or is the video sped up ?
Thanks. These are at 1X speed.

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