Student Research Reports
Characterization of physico-chemical parameters of water with the metabolism of cultivable bacteria in the Rochester School’s artificial reservoir
Organization(s):Rochester School
Country:Colombia
Student(s):Alejandro Torres Rico
Sofia Palomino Linares
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Teacher:Erika Díaz
Contributors:María del Pilar Tunarroza
Report Type(s):International Virtual Science Symposium Report
Protocols:Alkalinity, Dissolved Oxygen, Nitrates, Water Temperature, Water Transparency, pH
Presentation Poster:
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Optional Badges:I am a Collaborator, I make an Impact
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Date Submitted:03/01/2018
Small reservoirs are prevalent landscape features that affect the physical, chemical, and biological characteristics of headwater streams and land around them. We reported a four months characterization of the artificial reservoir of Rochester School in Chia, Colombia. The site was sampled weekly for water quality parameters (pH, dissolved oxygen, turbidity, alkalinity, total phosphates, total nitrate with the use of protocols proposed by GLOBE and the analysis kit for water La Motte). The most fluctuated parameters were the concentration of nitrates and dissolved oxygen. Procedures for cultivating and characterizing bacteria and their metabolism were made, finding 23 isolates with both fermentative and oxidative metabolic capacities, low motility and great capacity to reduce nitrates, possibly as an adaptive measure to changes in chemical conditions of water and nutrient availability. All of this in order to first know the properties of the sample site and in a future evaluate whether or not it was possible to have complex animals.