Winoblog

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.

Friday 8 April 2016

UCA_GroupA2_Day 1_Rio San Pedro sediment + 1,5 g FeSO₄ + paper _(column exposed to sunlight)

First of all, we had to prepare the Winogradsky column with a 1,5 liter plastic bottle filled with the components named above:

1) In a container, we added sediment to cover 2/3 of the bottle, being careful to remove big leaves, pieces of wood… and mixed it with sea water, paper and 1,5 g FeSO4 to obtain a dense, viscous fluid.

2) Then, with a funnel, we introduced the mixture in the bottle, trying to do the sediments to fall on the bottom, and filled the 2/3 of the bottle with non enriched sediment. Finally, we added sea water in the surface and closed the bottle (not hermetically to let oxygen enter in it) and put it in a permanent illuminated place (near a window for example).

Now that we have prepared the Winogradsky column, we just have to wait to observe the changes we´ll appreciate in the column and compare them with the changes noticed in a same column not exposed to sunlight.

Anyway, we expect to appreciate aerobic live on the top of the bottle (algae, photosyntetic bacteria), thanks to the sunlight, and anaerobic live on the bottom.