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Strobilidium facing each other

Two Strobilidium are facing each other. The whirlpool between them is so strong that small flagellates around these bodies cannot swim freely. The movement of diatoms is not so strongly affected, but a large colony of flagellates, Synula, is forced to stop for an instant.

Commentary by Prof. Yuji Tsukii, Hosei University
It is difficult to determine whether this organism is Strobilidium or Strombidium.



Sampling Date : 03 July 2009

Sampling Site : Hirose River B  Google Map

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