Are these Spirogyra and Rotifer?

These green structures were growing on mud. What are the chances that this is a species of Spirogyra?

Looking at this, it seemed like sexual reproduction was going to occur…

And its cell wall shows birefringence!

 

Lurking in these algal jungle was a creature strange. It was a rare sight that I could get to see only twice. the second time I recorded it. Is it a rotifer?

Once I had grown a twig of a weed in a glass beaker. It survived for several days. One day I had dropped a bunch of these thread-like structures in the beaker. The next day that weed died and shrivelled totally. I wonder if there is a relation between the two…

2 Comments Add yours

  1. Manu Prakash says:

    @Ronak: that does look like the gait of a Rotifer. Also, I had thought spirogyra has a helical cytoplasm – is that correct?

    Cheers
    Manu

    1. Ronak Hati says:

      A professor at college had said it is Spirogyra after observing it at higher magnification, though it still didn’t sound convincing.

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