Tis the season for diatom arrangements! Happy Holidays!

yeah, I said I was off this week..but I couldn't resist these.. Go check out the arranged diatom photo set at the California Academy of Sciences Flickr. here. 

The Ocean's Holiday Tree Ornaments! Stunning Scanning Electron Microscope Pictures of PLANKTON!

Radiolarians! A colored SEM image. Photo by John Cravens

Happy Holidays! Who loves a Christmas tree decoration? And has broken one in their lifetime?

Well, in the real world, we get to see LIVING glass (or sometimes chalk) boxes that might pass for ornaments! But you need to shoot electrons at them to get something like a similar effect! Scanning Electron Microscopes are the gift that keeps on giving!

Here is a diatom called (appropriately) Skeletonema. This one occurs in Florida waters..Image by FWC-Fish & Wildlife Research Institute

Another FWC diatom fr. Florida called Odontella aurita. More on its biology here.

The following are SEM images of foraminifera (shelled amoebas) taken by the National Museum of Wales..

Tubulogenerina narghilella.
Image: Ian McMillan, Cardiff University.

Another foraminifera: Halkyardia minima. Image by Ian McMillan, Cardiff University.

You know what people like?  COCCOLITHOPHORES!!  These are algae which have calcium carbonate (i.e. chalk) skeletons which under the surreal view of an SEM appear like this...

Image by Sea Surface OA cruises.
Scanning electron microscope of Emiliania huxleyi: coccospheres and loose coccoliths from a bloom in the South Atlantic. 

Cretaceous coccolithophores!

Image by Jessica Matheson

Here's a nice conglomerate of Umbilicosphaera sibogae from the folks at Zeiss microscopy!























Happy Holidays! Echinoblog is off next week ! 
(thanks to Chris Taylor and Rhi L. for corrections!)