Planktonic Diatoms

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KurtM
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Planktonic Diatoms

#1 Post by KurtM » Sun Jan 16, 2022 6:15 pm

I must have been reasonably well behaved over the past year, as Santa brought me a brand new plankton net. I took it for a test drive by dragging it up and down the dock at a nearby boat ramp to see what's in the cooler winter water. This is 29.5º N latitude, so when I say 'cooler winter water' we're talking around 50ºF/10ºC. Anyway, I was rewarded with a rich haul, and today I present some of the diatoms I found at or near the surface, no closer than 20 feet/6 meters from the shoreline.

Besides diatoms, there were myriad ciliates, larvae, and other critters in the 'soup', as you see in the last picture which is being 'photo bombed' by a couple of dinoflagellates.

https://www.google.com/maps/@29.5500403 ... a=!3m1!1e3
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1-13-22 Coscinodiscus sp 10x.jpg
1-13-22 Coscinodiscus sp 10x.jpg (244.63 KiB) Viewed 2152 times
1-13-22 Ditylum sp 40x.jpg
1-13-22 Ditylum sp 40x.jpg (99.96 KiB) Viewed 2152 times
1-13-22 Rhizsolenia sp 20x.jpg
1-13-22 Rhizsolenia sp 20x.jpg (67.6 KiB) Viewed 2152 times
1-13-22 Melosira and Dinos 40x.jpg
1-13-22 Melosira and Dinos 40x.jpg (70.77 KiB) Viewed 2152 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: Planktonic Diatoms

#2 Post by Hobbyst46 » Sun Jan 16, 2022 7:29 pm

Wow !!

LouiseScot
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Re: Planktonic Diatoms

#3 Post by LouiseScot » Sun Jan 16, 2022 8:38 pm

Very nice!
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

Javier
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Re: Planktonic Diatoms

#4 Post by Javier » Sun Jan 16, 2022 11:22 pm

Beautiful!

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KurtM
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Re: Planktonic Diatoms

#5 Post by KurtM » Mon Jan 17, 2022 3:08 am

Thank you very much!

PM to Doron: I still have those shells and will get busy on them one of these days, I promise! Do you remember what I'm referring to?
Cheers,
Kurt Maurer
League City, Texas
email: ngc704(at)gmail(dot)com
https://www.flickr.com/photos/67904872@ ... 912223623/

MicroBob
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Re: Planktonic Diatoms

#6 Post by MicroBob » Mon Jan 17, 2022 6:50 am

Hi Kurt,
beautiful photos again! In a chemically cleaned sample some of these diatoms would be difficult to find.

Bob

Hobbyst46
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Re: Planktonic Diatoms

#7 Post by Hobbyst46 » Mon Jan 17, 2022 11:49 am

KurtM wrote:
Mon Jan 17, 2022 3:08 am
Thank you very much!

PM to Doron: I still have those shells and will get busy on them one of these days, I promise! Do you remember what I'm referring to?
As long as you keep posting such beautiful images, anticipation is easier...

tlansing
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Re: Planktonic Diatoms

#8 Post by tlansing » Mon Jan 17, 2022 1:36 pm

Beautiful photos, Kurt!

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KurtM
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Re: Planktonic Diatoms

#9 Post by KurtM » Tue Jan 18, 2022 12:59 am

Thanks, y'all!

Microbob, I agree you're probably correct. But one of these days I'll successfully clean a Cylindrotheca fulsiformis, and when I do I'll be able to process anything!
Cheers,
Kurt Maurer
League City, Texas
email: ngc704(at)gmail(dot)com
https://www.flickr.com/photos/67904872@ ... 912223623/

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