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2006Botanical Garden in Aobayama VI

Soils from the L, H, and A layers were sampled from the Tohoku University Botanical Garden in Sendai. This is a video of an organism taken from the H layer, which is below the L layer. There are fairly decomposed organic debris and humic substances in this layer. At first organisms could not be found in the newly collected soil, so the samples (including water) were left for one month and then observed.


Commentary by Prof. Yuji Tsukii, Hosei University
This organism belongs to Helizoa, but the image is too small to determine the genus.

We cannot see the exact shape of the spines or other protrusions that are useful to distinguish the genera of Helizoa. We also cannot tell whether the cell surface is double-layered or covered with a gel-like substance, which is another characteristic that would help to determine the genus.

Sampling Date : 06 December 2006

Sampling Site : Tohoku University Botanical Garden in Aobayama  Google Map

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