Asterionella gracillima

Olympusman · Post by **Olympusman** » Fri Oct 24, 2014 8:24 am

Asterionella gracillima diatom. 135 microns from top to bottom.

RogelioMoreno · Post by **RogelioMoreno** » Sat Oct 25, 2014 11:41 pm

Interesting specimen.

Rogelio

Jacek · Post by **Jacek** » Sun Oct 26, 2014 12:15 am

75RR · Post by **75RR** » Sun Oct 26, 2014 3:35 am

First I have seen.
Wonderful find.
Very nice photo.

Pau · Post by **Pau** » Sun Oct 26, 2014 4:17 am

Very nice!

Olympusman · Post by **Olympusman** » Sun Oct 26, 2014 7:59 am

Thanks, guys. This is the same pond that was rich in Eudorina and Volvox earlier this spring, but at this point there are none. It may be a drop in sunlight or water temperature or both.
These diatoms now occcur by the hundreds in a water drop building up from one arm to six, seven or eight arms.Many of the ones with multiple arms no longer have chlorpolasts and are dead.

Ecki · Post by **Ecki** » Sun Oct 26, 2014 8:28 am

vasselle · Post by **vasselle** » Sun Oct 26, 2014 9:57 am