Winogradsky column lab page!

Welcome to the Winogradsky column lab page! Students from the Departments of Biological Applications and Technology, University of Ioannina and Icthyology and Aquatic Environment, University of Thessaly, Greece and the Microbiology course, Faculty of Sciences, University of Cádiz, Spain, discuss their findings on Winogradsky columns they constructed!

If you want to add a post, please feel free to contact the blog administrators (Hera Karayanni, Sokratis Papaspyrou or Kostas Kormas)!

Καλωσορίσατε στη σελίδα των Winobloggers! Διαδικτυακός τόπος συνάντησης φοιτητών, φοιτητριών και διδασκόντων δύο Τμημάτων από την Ελλάδα: Tμήμα Βιολογικών Εφαρμογών και Τεχνολογιών, Παν/μιο Ιωαννίνων και Τμήμα Γεωπονίας, Ιχθυολογίας και Υδάτινου Περιβάλλοντος, Παν/μιο Θεσσαλίας και ενός από την Ισπανία: Σχολή Θετικών Επιστημών, Πανεπιστήμιο του Cadiz. Παρακολουθούμε, σχολιάζουμε, ρωτάμε, απαντάμε σχετικά με τα πειράματά μας, τις στήλες Winogradsky!

Bienvenidos a la pagina web de los Winobloggers! Aquí los estudiantes y profesores de dos departamentos griegos, el Departamento de Aplicaciones y Tecnologías Biológicas de la Universidad de Ioannina y el Departmento de Agricultura, Ictiología y Sistemas Acuáticos de la Universidad de Thessalia, junto con los estudiantes de Microbiología de la Facultad de Ciencias en la Universidad de Cádiz, se reúnen para observar, comentar, preguntar y responder a preguntas relacionadas con nuestro experimento, la columna Winogradsky.

Winogradksy columns

Winogradksy columns
'In the field of observation, chance only favors the prepared mind' Pasteur 1854

Blog posts

Tuesday, 24 March 2015

Cadiz, 4B: third week results

Hi winobloggers! I’m Paula and it is the second time I write here. I was taking about the Winograndsky Column and today I’m going to bring you the results of the third week.
We haven’t seen big changes in the bottle maybe due to the fact that we mixed the mixture with oil motor. Because of that our bottle isn’t so spectacular like the other ones.
Despite that we appreciated that the liquid inside the bottle is more liquid than before as the water has spread out.
Another thing we noticed is that it seems like the bottle had expelled vapours and they had been dried. That has left red signs in the bottle. (Like redish dry sediment).
On the other hand, the sediment continues black like the other days although there are a part in the top that seems clearer than the rest, maybe because it is starting to appear life in the sediment.

These are some pictures of the bottle during the third week.


  1. Hi,
    Do you have nay water overlying the sediment? I cannot really tell from the picture.

    I can assure you that your column is full of life. Billions of bacteria live in every cm3 of your sediment. They are just not the types you are familiar with.

    So why did you add the motor oil? What did you expect to see and what do you think happened?


    1. Hi Sokratis.
      First of all I want to answered the last question. We added motor oil because we wanted to confirm that the motor oil would make life die. However we were wrong because of the things you have said.
      On the other hand, there is little water overlying the sediment.

  2. Hola Paula! What could be the rusty red colour zone at the sediment-water interface? Do you (or any other from the Cadiz teams) have a reference column without oil? Or a reference in the dark?