Melosira, Biddulphia & Odontella Diatoms

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KurtM
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Melosira, Biddulphia & Odontella Diatoms

#1 Post by KurtM » Thu Dec 16, 2021 7:22 pm

I've been sampling at the Texas City Dike lately, a 5 mile long spit of land jutting out into Galveston Bay near its entrance from the Gulf Of Mexico. It's impossible not to be captivated and delighted by the long golden chains of Melosira, and zig-zag Biddulphia diatoms. Then I ran across a new one to me: Odontella, either O.aurita or O.mobiliensis, I believe.

All images through the Olympus BHS BH-2, 40/.95 Splanapo, DIC

Reference: https://www.google.com/maps/@29.3775325 ... 676,14.75z
Attachments
12-10-21 9928 Biddulphia sp 1024px.jpg
12-10-21 9928 Biddulphia sp 1024px.jpg (123.16 KiB) Viewed 4154 times
12-10-21 9737 Biddulphia sp 1024px.jpg
12-10-21 9737 Biddulphia sp 1024px.jpg (107.38 KiB) Viewed 4154 times
12-9-21 9628 Biddulphia sp 1024px.jpg
12-9-21 9628 Biddulphia sp 1024px.jpg (118.32 KiB) Viewed 4154 times
12-16-21 9999_177 Odontella sp 1024px.jpg
12-16-21 9999_177 Odontella sp 1024px.jpg (77.88 KiB) Viewed 4154 times
Cheers,
Kurt Maurer
League City, Texas
email: ngc704(at)gmail(dot)com
https://www.flickr.com/photos/67904872@ ... 912223623/

Hobbyst46
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Re: Melosira, Biddulphia & Odontella Diatoms

#2 Post by Hobbyst46 » Thu Dec 16, 2021 7:38 pm

Great photos, KurtM !

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75RR
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Re: Melosira, Biddulphia & Odontella Diatoms

#3 Post by 75RR » Thu Dec 16, 2021 8:02 pm

.
Gold mine! 3 fascinating diatoms in abundance - get in there with the 63x :)
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zzffnn
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Re: Melosira, Biddulphia & Odontella Diatoms

#4 Post by zzffnn » Thu Dec 16, 2021 8:08 pm

Beautiful, Kurt!

Complete Odontella may be difficult to mount and preserve, as they look quite delicate?

Are those single shots, not stacked?

I need to go to that Texas City Dike some day. It is also well known for windsurfing, fishing and birding too.

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75RR
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Re: Melosira, Biddulphia & Odontella Diatoms

#5 Post by 75RR » Thu Dec 16, 2021 8:45 pm

.
Third diatom Odontella mobiliensis ?
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Greg Howald
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Re: Melosira, Biddulphia & Odontella Diatoms

#6 Post by Greg Howald » Thu Dec 16, 2021 9:10 pm

I think 75rr is correct. I've only seen one other before.
😃 Greg

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Re: Melosira, Biddulphia & Odontella Diatoms

#7 Post by LouiseScot » Fri Dec 17, 2021 2:06 am

Lovely pics!
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Re: Melosira, Biddulphia & Odontella Diatoms

#8 Post by Francisco » Fri Dec 17, 2021 8:12 am

Very nice!

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Wes
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Re: Melosira, Biddulphia & Odontella Diatoms

#9 Post by Wes » Fri Dec 17, 2021 9:32 am

Beautiful images Kurt! Thanks for sharing.
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KurtM
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Re: Melosira, Biddulphia & Odontella Diatoms

#10 Post by KurtM » Fri Dec 17, 2021 3:18 pm

Thanks for the kind comments, all! Yes, O. mobiliensis looks about right to me too.

The images are all stacks, and some post processing has been done, mostly to adjust light levels and local contrast (sharpening) plus other tweaks if I think it helps.

The Texas City Dike is a fantastic resource, quite popular with wind surfers, para-surfers, kite surfers, sailboats, wave runner/jet ski, and just plain beach-aping & swimming. Also a mecca for birding and fishing, and likely a few other leisure pursuits I'm forgetting. But the thing is, it never gets so crowded that traffic becomes a problem, as it often does for nearby Galveston Island. Of course we locals avoid all those places on weekends during the summer half of the year.
Cheers,
Kurt Maurer
League City, Texas
email: ngc704(at)gmail(dot)com
https://www.flickr.com/photos/67904872@ ... 912223623/

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