Winoblog, Third post, group B7.
This is the third post which we make about our “Winogradsky column”.
By this time, the column has changed a lot. For example, microalgae
have appeared in our column. To be more accurate, they have appeared in a water’s
zone with oxygen.
On the one hand, some gas bubbles have appeared in our
column. That bubbles
as a sign of metabolic activitiy. Cianobacteria produces oxygen using another componets of our “widnogradsky column”.
as a sign of metabolic activitiy. Cianobacteria produces oxygen using another componets of our “widnogradsky column”.
On the other hand, stratification can be better appreciated.
For example, under the water, there are a large area of greenish gray. This
is because microorganisms are growing up there, more specifically Beggiatoa is growing there.
To sum up, we can se how the bio-system that we have created
is becoming stable. Besides, we can appreciate differents strata that a couple
of days before there werent there.
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| Figure 1: Microalgae. |
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| Figure 2: Photo taken 17th April. |
Hi,
ReplyDeleteThanks for the post.
Beggisatoa are sulfide oxidisers. They need oxygen and hydrogen sulfide to grow. They would appear as white filaments in your column. Do you see such filaments in yoru column?
Next time try to take a closeup picture so we can see your pets better.
Sokratis