the marine diatom Eucampia

Franz Neidl · Post by **Franz Neidl** » Mon Dec 12, 2011 3:14 am

I have the impression that the winter is the time for the diatoms. The first time I find now Eucampia sp. I dont know the name of the species. Maybe it is E. cornuta?
First picture: Obj. 40x, DIC, stack with 6 pics
Second picture: Obj.40x, DIC, stack with 3 pics.

Franz

René · Post by **René** » Mon Dec 12, 2011 6:41 am

well, early spring is best, but the autumn/winter turbulence brings nutrients/silica back into the water column, supporting diatom growth.

Your images pretty much resemble the forms in our waters, which is E. zodiacus.
I have never seen E cornuta, but girdle bands should be visible in water mounts for this species.

Best wishes, René

Franz Neidl · Post by **Franz Neidl** » Tue Dec 13, 2011 4:47 am

Thank you Renè. Your answer about the water turbulence and the silica is bringing me to a better understanding of the ecology of the diatoms.

Franz

RogelioMoreno · Post by **RogelioMoreno** » Tue Dec 13, 2011 5:01 am

Very nice, amazing specimen!

Rogelio

gjones · Post by **gjones** » Tue Dec 13, 2011 11:10 am

Great photomicrograph!!

Mitch640 · Post by **Mitch640** » Tue Dec 13, 2011 1:24 pm

Excellent image quality. He looks like a broken transmission gasket.