I have a water sample that used to thrive with life. Water flies, Ostracods, aquatic larvae etc. I missed plants and algae so I added a few drops of plant fertilizer. Very interesting results.. After a week all "animals" were dead. Plants and algae started to grow. Rapidly. First all sorts of algae, but lately also cyanobacteria (I think). Now it looks like a dark green sludge.
I witnessed a very interesting behavior of Cyanobacteria. On several occasions I noticed that they had formed a loop. I wondered how on earth they did that and managed to watch a loop in forming. Even though they were squeezed between the slide and the cover glass they managed to cross it´s own body and then rotate the first simple loop, forming a spiral and more complex loops. This happened over and over again. I do not know what is the reason for this. Anyhow, I found it worth documenting through the photos.
Image 1 [Single image, DIC, UplanSAPO40X]
Image 2 [Single image, DIC, UplanSAPO40X]
A Diatom is watching from a distance.
Image 3 [Single image, DIC, UplanSAPO40X]
Image 4 [Stack of 6, DIC, UplanSAPO40X]
Unfortunately, the beautiful Diatom swam away before the final loop was done.
Cyanobacteria
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Cyanobacteria
Last edited by hkv on Fri Jan 06, 2017 8:36 am, edited 2 times in total.
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Olympus BX51 | Olympus CX23 | Olympus SZ4045 | Zeiss EVO LS 10
Interesting sequence and nice photos.
Regards Jörgen
Regards Jörgen
Jörgen Hellberg, my webbsite www.hellberg.photo
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