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The Thing

Posted: Fri Aug 09, 2019 4:02 am
by Saul
ID please, Nikon BD Plan 20x, Optiphot, Rheinberg/Oblique/Polarisation, found in the lake

Image

Image

Thanks,
Saul

Re: The Thing

Posted: Fri Aug 09, 2019 5:39 am
by 75RR
Great images and very interesting 'thing' Do you have an idea of the approximate size? That might help someone to identify it.

Re: The Thing

Posted: Fri Aug 09, 2019 7:05 pm
by Saul
75RR wrote:Great images and very interesting 'thing' Do you have an idea of the approximate size? That might help someone to identify it.
Thanks !
Approximately 0.25x0.5mm

Re: The Thing

Posted: Tue Aug 13, 2019 12:20 am
by Sauerkraut
These look similar in size, shape, and color to sedge grass seeds (species info unknown) that I collected today alongside the pond. The tiny seeds were contained inside larger black husks, which I initially mistook for the seeds.

I did not see hexagonal patterning but didn't look that closely either.

So maybe a seed?

Re: The Thing

Posted: Tue Aug 13, 2019 5:27 pm
by chrisskee
check Prorocentrum (? prorocentrum micas)
Greetings

Re: The Thing

Posted: Thu Aug 15, 2019 4:23 am
by Saul
chrisskee wrote:check Prorocentrum (? prorocentrum micas)
Greetings
Can it be from the lake (Chicagoland) ? Google states that Prorocentrum is marine ....

Re: The Thing

Posted: Thu Aug 15, 2019 4:27 am
by Saul
Sauerkraut wrote:These look similar in size, shape, and color to sedge grass seeds (species info unknown) that I collected today alongside the pond. The tiny seeds were contained inside larger black husks, which I initially mistook for the seeds.

I did not see hexagonal patterning but didn't look that closely either.

So maybe a seed?
Not too small for the seed ? Forgot to mention - it was almost transparent

Re: The Thing

Posted: Thu Aug 15, 2019 3:29 pm
by Sauerkraut
Saul wrote: Not too small for the seed ? Forgot to mention - it was almost transparent
Surprisingly, no. Using a stage micrometer, the grass seeds measure out to the same dimensions you noted: ~ 0.5 mm long x 0.25 mm wide. They are teeny tiny seeds, but not quite as pointed on the one end as your 'thing' is. I'm trying to see if they will germinate.

Your images are beautiful, btw.

Heather

Re: The Thing

Posted: Thu Aug 15, 2019 3:39 pm
by Saul
Sauerkraut wrote:
Saul wrote: Not too small for the seed ? Forgot to mention - it was almost transparent
Surprisingly, no. Using a stage micrometer, the grass seeds measure out to the same dimensions you noted: ~ 0.5 mm long x 0.25 mm wide. They are teeny tiny seeds, but not quite as pointed on the one end as your 'thing' is. I'm trying to see if they will germinate.

Your images are beautiful, btw.

Heather
Heather, thank you very much for your kind comment !
Will go to the same place to look for this grass ....

Re: The Thing

Posted: Sat Aug 17, 2019 8:06 am
by dtsh
Saul wrote:Heather, thank you very much for your kind comment !
Will go to the same place to look for this grass ....
Unless I have misread your location, you shouldn't have much trouble locating sedges along much of the lakeshore. There are large numbers of them up by Montrose Beach (bring the dog if you have one!!!).

Re: The Thing

Posted: Sat Aug 17, 2019 5:58 pm
by Saul
dtsh wrote:...Unless I have misread your location, you shouldn't have much trouble locating sedges along much of the lakeshore...
Yep,remember where I found it :)

Re: The Thing

Posted: Mon Nov 02, 2020 7:23 pm
by Saul
OK, mystery solved:

https://www.facebook.com/photo?fbid=462 ... 5254010550

https://www.facebook.com/SciencePhotoLi ... 026142949/

"The appendages on top of the head are air sacs used to control buoyancy. The larvae of these insects are aquatic and pupate underwater. They are common in lakes all over the world.
Credit: Frank Fox / Science Photo Library
http://bit.ly/339DXMU "

Re: The Thing

Posted: Mon Nov 02, 2020 7:34 pm
by 75RR
Chaoborus air sacks! Never would have guessed :)

Re: The Thing

Posted: Mon Nov 02, 2020 8:24 pm
by Rapidray
That is so cool looking!

Re: The Thing

Posted: Sat Jan 01, 2022 6:52 am
by shawn perez
images are so cool