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

Monday, 28 November 2016

Weekly Reports - TEAM A

University of Ioannina

Team A (Gregoris Notarides & Kostas Karanicolas)


2nd WEEK'S REPORT (28/10/16)

At the first column that was placed in front of the window, we observed a deep dark colour at whole column and also the fact that was really difficult to seperate the two different layers of the column. Mud's layer took darker colour because of the decomposition of organic matter and the water's layer took a green colour, probably because of the photosynthetic action of microorganisms that water contains. 

From the other side, at the column that was in dark enviroment we could clearly seperate the two phases. Mud's layer got dark colour, because of the decomposition process of organic matter, same as the first column. Also when we moved the bottle we observed airmass being free downside up, at this early point. 

 3rd WEEK'S REPORT (04/11/16)

We observed high growth of cloudiness at the top layer of first column. Also the green colour was faded and now it took a yellow-brown colour with one intense dark brown line shown at the spot where the two layers unite. 

The second column was expand so we needed to release some gas. The smell was really bad and caused by hydrogen sulfide, that was produced by microorganisms of the sediment.

4th WEEK'S REPORT (11/11/16)

Cloudiness of water grow much more at the first column. Plus at the surface we observed creation of a biofilm, which had a green and brown colour. At the same time, small green dots appeared at mud's layer with long distance between them.

At the second column, the line that is seperating the two layers was very obvious at this point with a dark brown colour. Once again we needed to release gas, with the same uncomfortable smell.




5th WEEK'S REPORT (18/11/16)


For first time, we needed to release gas at the first column too because the bottle was expand. The bad smell led us to the conclusion that hydrogen sulfide is being produced. The cloudiness of the water was changed a bit and the grow of biofilm and microorganisms at the surface was continued.

No changes took place at mud's or water's layer. The dark brown line that is separating sediment and water, got even more darker colour at this point.

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