Diatoms - photoset

Chris_M · Post by **Chris_M** » Wed Nov 02, 2011 2:40 pm

Diatoms - photoset:
Fragilaria
Pinnularia
Asterionella
Cymbella
Nitzschia

Navicula video:
http://www.youtube.com/watch?v=AzWolPrYKBw

(Nikon Plan 100/1,25 / DIC / Panasonic DMC-FX60)

Jan l'Amie · Post by **Jan l'Amie** » Thu Nov 03, 2011 1:01 am

Very nice pictures.

Cactusdave · Post by **Cactusdave** » Thu Nov 03, 2011 1:27 am

Always nice to compare living diatoms with their prepared, mounted cousins. The detail in the Nitzschia in particular is excellent.

RogelioMoreno · Post by **RogelioMoreno** » Thu Nov 03, 2011 5:20 am

Very nice set!

Rogelio

RogelioMoreno · Post by **RogelioMoreno** » Thu Nov 03, 2011 5:20 am

Very nice set!

Rogelio

Gyrosigma · Post by **Gyrosigma** » Thu Nov 03, 2011 5:45 am

Hello Chris,
Very nice but...
The 2 and 3 is a Navicula radiosa
The las one seems to be bacillaria paxilifer... but not sure

all the best

Dominique

Chris_M · Post by **Chris_M** » Thu Nov 03, 2011 12:39 pm

Thank you for comments.

Dominique, thank you for your help with identification. I enclose additional images of diatoms that seemed to me Pinnularia and Nitzschia. I think it's easier to identify whole objects at lower magnification.

side and top view / Olympus SPlanapo 40/0.95 / BF

Olympus SPlanapo 40/0.95 / BF

Gyrosigma · Post by **Gyrosigma** » Fri Nov 04, 2011 5:57 am

Thanks Chris,
Yes its easier to have the two sizes for a better identification, so
Navicula oblonga for the firts one and Nitzschia sigmoîdea in division for the second.
About Nitzschia, here is a single form

Best regards

Dominique

Chris_M · Post by **Chris_M** » Fri Nov 04, 2011 9:25 am

Thank you very much for ID.