Hypothesis 1: The bacteria will survive longer than the algae in the DOC consumption experiment.
Justification: Since we are incubating the bottles and cutting off their light source, the algae will only be able to live off the DOC they have stored, whereas the bacteria do not need light and can live off the DOC available until they consume all of it.
Hypothesis 2: The forested mesocosm samples will experience a greater loss in DOC than the sunny mesocosm.
Justification: Since the algae is likely to die off in the sunny mesocosm samples, I predict that the forested mesocosm samples will experience the greatest loss in DOC. The forested mesocosm after the leaves fall would have the most available DOC to feed the bacteria, but my hypothesis is just from our two samples.
Hypothesis 3: There will be more DOC remaining in the sunny mesocosm samples after our 28 day experiment than in the forested mesocosm.
Justification: I’m going to guess that there may be DOC remaining after we have tested on the last day due to the death of the algae, because they will stop consuming the DOC and release the carbon they had stored. The data from previous years suggests that the sunny mesocosm starts out with more DOC as well.