by Connor Harding
Hey Everyone, its been a while and I thought I posted this a long time ago.
As you can tell, we have a little bit going on here in the 4% saline column, only a 0.3cm black band. The water is slightly green which is a good indicator of cyanobacteria growth.
The 12% saline solution had no growth at this juncture, there were no observable bands of colorings.
Our control, which had no added saline, is growing fantastically, he has two bands, a 0.4cm wide black band that is 2.6cm below the water line. It has a nice thick green band of growth, of 2.2cm wide. His water has turned very green, with an abundance of algae or cyanobacteria growth.
The 8% solution has little growth, a single black band about 0.4 cm wide and it is 0.2cm below the surface line. The water is slightly green, which may be due to an algae or cyanobacteria presence.
The black line that we are seeing is likely a heterotrophic bacteria, due to its close growth with the green oxygen producers. Also because the control had a lot of green growth, the black band was thicker, so there is likely a correlation there, that more food meant more cellular division.