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!

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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, 16 March 2015

Cadiz, 4B: WINOGRANDSKY/1-2 week results

Monday 16th March
Winograndsky column, 1st and 2nd week results (group 4-B)
Our group is composed by Mario Pérez, Mercedes Martinez and me, Paula Sánchez. We study Biotechnology at the University in Cádiz, Spain.
Our teacher of Microbiology asked us to do a project that consisted in analyse what happens when you leave sediments of a river near university (Rio San Pedro) in a bottle for some weeks. We accepted the challenge and made the Winograndsky column on Tuesday 3rd of March.
For that we used an Aquarius bottle because we had to fill it up with sandy beach sediment from Rio San Pedro, as I said before.
Before filling the bottle with that, we mixed the sediment with some starch, in order to enrich the mixture. We added some motor oil and copper sulphate also. We didn’t think motor oil could make life inside the bottle die, but despite that fact, we continued with the project.
We moved the mix (sediment and enrichments) in a recipient because we wanted it to be so homogeneous and then we added some water.
Lately the mix was transfered to the bottle and it occupied 3/4 of it approximately.
During the firsts days the bottle remained similar, as we didn’t appreciate any change. On Saturday and Sunday we realized the mix was darker than before, maybe because of the motor oil.
Then the little worms the sediment had looked dead, we think it could be because of the motor oil also as it is a contaminant product and the tap water we added to the bottle became black.

It is important to mention that the bottle resides in an illuminated and opened area but the sunbeams can’t reach it directly, so the microorganisms the bottle could have can live as the gradient of temperature doesn’t reach 20ºC.

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