weblog 2020 |
|
[home] [weblog] [science] [people] [station] [ny-ålesund] [sightings] [sitemap] [nederlands] |
|
Mesocosm experiment | 5 July 2020 |
|
Mesocosms are small representation of the real world, where environmental parameters can be changed to study their effect. Catharina Uth is doing a special experiment where she varies nutrients (added goose droppings), temperature and zooplankton in small containers representing lake Solvatnet.
| |
| |
|
Above: the first set-up Below: getting water from the lake. 
| |
The lake water needed to be first without Daphnia. This is done by three times filtering over a 0.5 mm sieve and a visual inspection and removal of any daphnia left. Than 10 large Daphnia are added to half of the mesocosms.
| |
|
|
|
|
| Pots get a unique code with all treatments and there will be 4 different nutrient levels (0,1,2 and 3 droppings added), and half of the aquaria is heated. When everything is ready, the temperature is checked. | |
| |
[home] [weblog] [science] [people] [station] [ny-ålesund] [sightings] [sitemap] [nederlands]
|
|||||||
| [previous] | [present] | [next] | [overview] | ||||
 |
 |
 |
 |
||||
| 20200705, 14:00 | 20200705, 18:00 | 20200705, 23:00 | all items shown with small pics | ||||
| incubating arctic tern | mesocosm experiment | our home |