| After the rain, puddles everywhere. They quickly turn green, smelly : probably living organisms modifying this short-lived ecosystem Plenty of water, yes, but what are the living organisms ? Are stagnant water ecosystems always the same ? To find out, we created 2 artificial puddles, put them in different environmental conditions and compared their physical and biological characteristics. |
|
| I - Material and methods A - Our artificial puddles B - Physical measurements 1- pH 2- Temperature 3- Turbidity C - Microscopy II - Results and discussion A - Physical characteristics 1- pH 2- Temperature 3- Turbidity B - Biological characteristics 1 – Diatoms (by Lou-Anna/Eva and Arnaud/Hugo) 2 - Vessels elements (by Titouan/Naël and by Marion/Lou V.) 3 - Rotifera (by Aline/Juliette and by Quentin/Thibaud ) 4 - Paramecia (by Rose/Lou P) |  |