|Some of the phytoplankton that Kylie has photographed. You can see several different types.|
To conduct their experiment, they took water samples from the lake in jars.
|Gina collecting one of the jars of lake water.|
After a couple days in the greenhouses, Kylie and Gina are busy counting their phytoplankton from each one. If their hypothesis is supported, they will count more plankton in the jars that were sitting in the warmer greenhouse. This takes quite a lot of work, because neither Gina nor Kylie were plankton experts when they got here. They have learned how to recognize the different types of plankton and how to use the big inverted microscope.
Kylie and Gina will be communicating their project through photography. They will be creating what is called a "composite image". The main focus of the image will be a photograph of the phytoplankton they collected, but the background will have other images layered in that represent the environment the phytoplankton were living in. If that doesn't quite make sense, don't worry. I had a hard time picturing it from the description, too, until Kylie showed me an example. It looks cool! That means that they are doing a lot of computer editing of images, along with their microscope work.
Temperature was their initial variable that they studied. Now, they have also acidified the water, to simulate potential impacts of CO2 dissolving in water (which dissolves into carbonic acid and acidifies water) and other forms of pollution. They will again count their plankton at those temperatures to see if they are impacted by both temperature and acidification. They will be microscope pros by the end of the course!