1. Ecosystem investigation in Petäjävesi, Finland Jämsänvesi

2. Measuring the width of the litoral zone and the width of the vegetation zones

3. Taking water samples Instruments for taking invertebrate samples Taking plankton samples

4. What is in there? What is in there?

5. Water samples and plankton sample Suspended solids Water colour Plankton In classroom we investigated...

6. Bacteria Bacteria

7. PCA-agar VRB-agar (Koliformic bacteria)

8. Species identification Map over research area

9. ..... We can do this because we don´t have our phones with us... Girls will do the work – we have to take a break. What is happening there?

10. Petäjäveden lukio 2. class 31.8.2011 Petäjäveden lukio 2. class 31.8.2011