Lab report in Microbial Ecology:

Group: Maria -xristina Zerma, Dimosthenis Zairis

In this column Winogradsky, used sediment and egg and water from beach Anavros in Volos.

Day 1 :

During the first day , the column was sealed and placed in a bright place , at room conditions

Second week:

During the second week , an increase in turbidity of the water. The turbidity due to increased phytoplankton cells. 

As shown in the photo below shows a pale green color.

 
Third week

 
During the third week , the turbidity of the water was reduced significantly and the water surface formed plates.
 

 
 
Fourth week
 

After the fourth week, the precipitate gradually column acquired along the length of black simultaneously,
 the water column is also colored black.
 

Hello,

Winogradsky column by A. Kavalarakis and P. Kapaniaris

Our samples were taken by Anauros (local beach of Volos, Greece) during our university field trip. We already had prepared the necessary tools:

ü  One plastic bottle of 1.5l

ü  One plastic bottle of 0.5l

ü  One egg

ü  Some small paper pieces

We went there and we followed specific steps:

Gather sea sediment  and make a hole in the middle

Put the paper and the egg inside, make a mixture

Put it inside the bottle (2/3 parts of the big bottle)

Finally, filled up with water

Then we left it in a light place and took some photos during the days of the experiment.

Day 1,

 At the first day of our experiment we placed our column in a bright spot and sealed

 Day 10,

 We can see the water bluring and changing color and becoming yellow. This is a result of the photosynthesis of  the phutoplankton.

 Day 27,

We can see the color changed in to red. Due to FeO which can found it in sea sediment.

 Hello,

Winogradsky column by S. Kokoroskou and S. Kressou

Our samples were taken by Anauros (local beach of Volos, Greece) during our university field trip. We already had prepared the necessary tools:

ü  One plastic bottle of 1.5l

ü  One plastic bottle of 0.5l

ü  One egg

ü  Some small paper pieces

ü  milk

We went there and we followed specific steps:

1.     Gather some soil and make a hole in the middle

2.      Put the paper and the egg inside, make a mixture

3.    Put it inside the bottle (2/3 parts of the big bottle)

4.    Also, some milk inside (about 50 to 100 ml)
5.    Finally, filled up with water

 Then we left it in a dark place and took some photos during the days of the experiment.

1 day

                                                                             image 1 

 15-20 day 

After period of time and between the 15^th  and 20^th day of our experiment the statue of water has started to obtain a brown color (image 2,3). Due  to FeS which is released from the anaerobic processes which are taking place inside the column.

                                                                            image 2

                                                                              image 3