Help ID Chlamydomonas?

carlos.uruguay · Post by **carlos.uruguay** » Mon Oct 05, 2015 7:03 pm

Among the inhabitants of the freshwater lake of Parque Rodó
quarries, Montevideo - Uruguay - South America
we have found these unicellular algae.
Measured between 6um (0.006mm) and 10um (0.01mm) in diameter.
Have a red eye and two flagella.
Sometimes there are many in a gelationsa cover.
It is probably Chlamydomonas genre because we see in some of them a more intense green spot that we assume
it is the pyrenoid present in that genre.
Oblique polarized light.
Video link:
https://www.youtube.com/watch?v=k0SqOH_2MDo
Video frame:

Regards
carlos

zzffnn · Post by **zzffnn** » Mon Oct 05, 2015 9:04 pm

Great video at such high magnification!
What light source do you use? Halogen, LED or mercury lamp? What wattage or lumen output? Thank you!

Jacek · Post by **Jacek** » Mon Oct 05, 2015 11:24 pm

interesting video

carlos.uruguay · Post by **carlos.uruguay** » Tue Oct 06, 2015 4:54 am

Thank you zzffnn and Jacek.
I doubt between Chlamydomonas and Chloromonas

zzffnn wrote:What light source do you use?

zzffnn, I use this LED light source:
http://www.ebay.com/itm/262002762736
with a 21KHZ Dimmer:
http://www.ebay.com/itm/252004116458
(because a dimmer lower frequency produces black bands in the video)
carlos

fpelectronica · Post by **fpelectronica** » Sat Oct 10, 2015 8:14 am

Very nice!

carlos.uruguay · Post by **carlos.uruguay** » Sat Oct 10, 2015 9:06 am

Thanks friend Francisco