Trachyneis aspera (Girdle view)

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75RR
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Trachyneis aspera (Girdle view)

#1 Post by 75RR » Wed Feb 19, 2020 9:35 am

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Planapo 63x/1.4, DIC, 115µm length, stacked in Photoshop, Marine sample, Alboran Sea.
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Hobbyst46
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Re: Trachyneis aspera (Girdle view)

#2 Post by Hobbyst46 » Wed Feb 19, 2020 12:12 pm

Very nice photo, 75RR ! better than the one I found on the internet (Florida Coastal Everlades site).
Is a greater number of single images required for girdle view than for valve view ? given this type of diatom that in valve view is elongated and symmetrically pointed ?
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75RR
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Re: Trachyneis aspera (Girdle view)

#3 Post by 75RR » Wed Feb 19, 2020 12:24 pm

Thanks Hobbyst46,
Is a greater number of single images required for girdle view than for valve view ? given this type of diatom that in valve view is elongated and symmetrically pointed ?
I suppose it depends on each diatom - in this case I would need it to roll over or have a similar sized one showing the other face on the same slide.

Unfortunately neither of these events happened - would have made a nice set.

It also depends on its position on the slide (they rarely lie perfectly horizontal) and are of course three-dimensional. In this case there were 37 images in the stack.
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Re: Trachyneis aspera (Girdle view)

#4 Post by WhyMe » Wed Feb 19, 2020 12:48 pm

Very nice image!

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KD Arvidsson
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Re: Trachyneis aspera (Girdle view)

#5 Post by KD Arvidsson » Wed Feb 19, 2020 2:45 pm

Very Beautiful picture//KD
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75RR
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Re: Trachyneis aspera (Girdle view)

#6 Post by 75RR » Wed Feb 19, 2020 9:55 pm

..
Thanks WhyMe and KD Arvidsson

Hobbyst46 wrote:
Wed Feb 19, 2020 12:12 pm
better than the one I found on the internet (Florida Coastal Everlades site).

Use Species toggle to locate Trachyneis aspera, then press Go https://fce-lter.fiu.edu/data/database/diatom/index.php

Curiously, there are surprisingly few images of the girdle view of Trachyneis aspera on the web.
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Re: Trachyneis aspera (Girdle view)

#7 Post by tgss » Thu Feb 20, 2020 1:40 pm

Another beaut 75RR... very nicely done.
Changing the topic slightly, can you tell us about your little fly logo? I have this strong feeling I've seen it before somewhere, possibly in connection with a mathematical problem, but that might just be my geriatric mind wandering!
Tom W.

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75RR
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Re: Trachyneis aspera (Girdle view)

#8 Post by 75RR » Thu Feb 20, 2020 1:55 pm

Thanks tgss
Changing the topic slightly, can you tell us about your little fly logo?
Well ... they are meant to be Bees, 4 of them.

Don't know what else they may have been used for but in this case they form a play on my surname.

Before it was anglicized, it used to be pronounced with two syllables
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Re: Trachyneis aspera (Girdle view)

#9 Post by tgss » Thu Feb 20, 2020 8:45 pm

Ahhhh... thank you 75RR. Of course they are bees, now that I look at them more closely :cry: :oops: They still seem familiar, but I'll just put that down to my continuing decline into senility.
Tom W.

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