Help with class stuff

collitchboy

New member
Hello all. I am taking an SEM class this semester and was hoping to get some help. Part of the class is identifying what we have taken pictures of and when you are looking at random samples of live rock that can become difficult.

Below are some of the images I have and was hoping for a general idea of what they are:
liverockstructure6.jpg

liverockstructure3.jpg

liverockstructure.jpg

liverockstructure4.jpg


These two were taken from a freshwater sample:
vertsacks.jpg

vertsack2.jpg


Any help/thoughts would be greatly appreciated! :)
 
Wow, that is really impressive, wish I had one at my house :) That last picture looks so magnified that those rod shaped things look like bacilli, just not sure if gram positive or gram negative :) :)

Super cool pics tho, I just killed 5 min looking at them.

Norman
 
Really cool pictures. The first one may be some algae? The rest I'm not sure of. Maybe #2 is a small copepod?

Very cool!
 
I'd love to see more images like this. I'd guess sponge types on most as well, except the copepod-ish looking one.
 
I'm almost positive that # 2 is a pennate shaped diatom. It is the frustules you are seeing- the seam between the two halves is visable on the left edge of the structure. After that one I'm not sure, but the larger stuctures on the last two photomicrographs remind me of tunicates. Some things change appearance due to the drying process required. Taking Dr. Wells at MTSU?
 
Thanks for the input. I was thinking the second one was a diatom but was not very sure. The last two remind me of spones/tunicates but I wasn't too sure because they are actually on a fish bone from my old cichlid aquarium (they killed my pleco after years of being the tank).

Yea, I am taking Dr. Wells. I have enjoyed learning everything and using the scope. Now I am nervous about identifying or atleast getting close when that seems out of the parameters for the course, atleast to me.
 

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