Two more diatoms

Images made through a microscope. All subject types.

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pwnell
Posts: 2031
Joined: Fri Dec 18, 2009 4:59 pm
Location: Tsawwassen, Canada

Two more diatoms

Post by pwnell »

The first is a stack of 18 photos under my 100x objective (oil immersed). It is very hard to stack at this magnification... Had to retouch by hand (used Helicon Focus). Uncropped photo. From what I understand those two spheres are oxygen bubbles formed by photosynthesis that the diatom uses for buoyancy.
Image

Another diatom (I think), normal 40x objective and cropped. Single photo. Both diatoms from the ocean off Crescent Beach, BC, Canada:
Image

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

I'll have to watch for those bubbles in future. I have seen them, but thought they were some other liquid, as seen in Closterium, as I never saw them change position.

pwnell
Posts: 2031
Joined: Fri Dec 18, 2009 4:59 pm
Location: Tsawwassen, Canada

Post by pwnell »

That is exactly what prompted me to investigate. Under 1000x magnification I actually saw them wobble around.

Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

I'll have to use time lapse or something similar, my most powerful useful lens is 40x right now. Or maybe 40x phase contrast would show it. :)

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