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, 17 May 2016

UCA_6B_2: Day 28 - The Iron Strikes Back

Rio San Pedro sediment + 1g CaSO4

Our column has not changed very much these weeks. We visited it a few days ago and see that nothing changed but the little dark stains (which are the reduced iron) that are bigger now and there are more of them. Last week we took some photos to see the changes:

 Our column after a few weeks.
We can see that our column is darker than ever, and there are more little orange sediments on the top of the bottle.

Our column has not changed very much but in the colum of the group 10B (the light bottle one) that day we spot some little intruders. There were as we can see in the photo below some snails looking around in the top of the bottle. 

We suppose that this is due to the fact that the sediment was taken from the San Pedro's river and the snails were inside of it. We could saidly afirm that maybe there was snails inside our column too, but the lack of organic matter and light did not make the life easy in there for them. Now they may rest in peace.

A comparation of the columns.

Now, if we compare our column with the group 10B (light column) one, we can see that their column does not present big black stains. Also, their column have a green colour in contrast to our. This is because of the presence of photosynthetics microorganisms, that need chlorophyll to capture light photons


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  2. The obituary to the unknown fallen snails of the world made me sad...