Algal dwellers


This is an overview of the site where I had the chance to sample some months ago. I learned how to manage doing so by reading this post:

Growing diatoms

Biodiversity has proven to be mindblowing! Ecosystems harboring several  ecosystems….. Such an intricate net! This is only a humble exemplification. Should I slightly reflect reality, sampling would be  more than endless!

Today’s subject are diatoms. Some live on algae that grow on the seashore rocks. Some kind of a Christmas tree..!😀


Here is a closer look:

Another diatom, observed under a foldscope high-mag lens:

I must say I have gone through this document ( for several times but cannot find the right genus of these species.

Interaction in unicellular organisms is amazing ! Some of these diatoms can live either attached to macroscopic algae (benthonic) or  freely on their own (planktonic) during their life. Why, when and how do they “make up those decisions”?

Next one must be Climacosphenia moniligera. Septae running along its frustules make it easy to recognize.

Using a foldscope can let us move small structures or microorganisms in order to spin them and watch them from all angles: valve and girdle view in this case.

To end with, I also found something strange growing on this green algae…. It was really frequent…Another epibiont? Any guess?

Check it here:


1@. This is a freshwater diatom clinging to a plant root. So plain and so beautiful!

2@. Playing with centric (left) and pennate (right) diatoms!

Till next post!

Cristina Bosch




4 Comments Add yours

  1. laksiyer says:

    @Cristina. This is a gorgeous post. Enjoyed reading it and seeing the videos many times over. I love the views of the diatoms you generated by jiggling the slide. I think it is a foldscope specialty.

  2. Mitali says:

    Those diatoms are beautiful!!! 😄

  3. varuni says:

    These are totally fabulous! I’m inspired to collect diatoms and look at them too!

  4. Cristina says:

    Thank you so much!!

    Fantastic if you are inspired to watch diatoms! @Janice once suggested to use corn syrup to observe them better. You will be able to find her comment in this post:

    By the way, I keep on wondering what that kind of branching structure might be..

Leave a Reply