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

Wednesday, 18 May 2016

UCA_EN_ 3&6-A_2: Day 15

Río San Pedro sediment + 2g CaSO4 + filter paper

Hello, by the first time we can observed our bottles, and this is that we saw:

-Conditions of daylight:

In the top we saw some seaweed and there is not turbidity.

We apreciated two zones. One of them where the sunligth pass around the bottle, we saw the effects of the photosintesis that the bacterias show. In the other where the ligth didn 't pass we saw a change of orange color owed an oxidative bacteries. Under these zone we saw black points that are iron sulfide (III) precipitate.

In the low zone we didn't see alterations, only the iron sulfide (III).

-Changes at darkness:

In this bottle we can appreciate diferences, there are turbidity owed by the microorganisms that are behind this zone and the next one. It's corresponded by the oxidative bacteries. In the middle zone there are not significative changes, there are more iron sulfide (III) cuantity In the low zone the iron sulfide (III) deposits.

1 comment:

  1. In general, behind the lines the observations are more or less correct. Corrections: Iron sulfide is FeS, so no (III) needed. Spell check please next post... ;-)