Week 6 October 17th

Appears to still be very little change in the columns up to this point. There were no signs of any new stratification levels as far as what could be seen. Let's hope for better results in the future!

 Control group 

 4% salinity

 8% salinity

12% salinity

Salinity	Stratification Layers	Height
Control	Water	3.5 cm
	Sediment Mixture	11.6 cm
4%	Water	3.1 cm
	Sediment Mixture	11.0 cm
8%	Water	3.3 cm
	Sediment Mixture	11.7 cm
12%	Water	3.1 cm
	Sediment Mixture	11.9 cm

Week 5 (Oct 12, a little bit behind the curve.)

Week five comes in late at week 6, (apologies to all for the timeline anomaly!)
The columns are definitely growing...stuff (ewww....too cool!) It appears that the control is in the lead for stratification, but then I'm a geologist in the making, what would I know about stratifying layers of microbial growth? To restate that, it appears that the control column has the greatest growth of green micro organisms. The layers may be obscured by the prolific growth. A better visual of the layering or stratification can be seen in the 4% saline column; much less growth of the brightly colored, happy looking bacteria though.  As stated, this post is behind the times so may be redundant with another post, (apologies again.)

The columns (10/12/15)

Control, window side

4% saline, window side

8% saline, window side (sensing a pattern here?)

12% saline, again from the window side.

Top view of our protein shakes...ewww, just kidding.

Salinity	Stratification	Height
Control	water	4.2cm
	Sediment	12.2cm
4%	water	3.8cm
	Sediment	10.3cm
8%	water	3.8cm
	Sediment	10.8cm
12%	water	3.4cm
	Sediment	11.6cm

Week of October 8th

This week, the most notable change to the Winogradsky columns was the dramatic growth of the cyanobacteria in the 0% salinity column. The other columns have had little change, but the 4% column is beginning to show clearer signs of stratification. Because the first column has had such dramatic growth of cyanobacteria, it might actually obscure other layers, preventing us from counting them in the future. Hopefully other layers will grow enough to be clearly visible.

Figure 1. 0% salinity column with a large amount of growth.

Figure 2. 4% salinity column with some stratification.

Figure 3. 8% salinity column

Figure 4. 12% salinity column

Figure 5. All columns from 0% (left) to 12% (right). The column on the left has cyanobacteria growing even on the plastic wrap. Condensation obscures the view, but there is some floating matter on the other columns.

Salinity	Stratification Layers	Height
Control	Water	3.5 cm
	Sediment Mixture	11.6 cm
4%	Water	3.1 cm
	Sediment Mixture	11.0 cm
8%	Water	3.3 cm
	Sediment Mixture	11.7 cm
12%	Water	3.1 cm
	Sediment Mixture	11.9 cm

Salinity

Stratification Layers

Height

Control

Water

3.5 cm

Sediment Mixture

11.6 cm

4%

Water

3.1 cm

Sediment Mixture

11.0 cm

8%

Water

3.3 cm

Sediment Mixture

11.7 cm

12%

Water

3.1 cm

Sediment Mixture

11.9 cm

September 21 Columns

Week 2 Growth - 21 September 2018


Very little has changed since last week. Additional condensation has been noticed (see figure 6). No additional stratification layers have been observed.

Figure 1: Control

Figure 2: Salinity 4%

Figure 3: Salinity 8%

Figure 4: Salinity 12%

Figure 5: Front View

Figure 6: Top View

Salinity	Stratification Layers	Height
Control	Water	3.5 cm
	Sediment Mixture	11.6 cm
4%	Water	3.1 cm
	Sediment Mixture	11.0 cm
8%	Water	3.3 cm
	Sediment Mixture	11.7 cm
12%	Water	3.1 cm
	Sediment Mixture	11.9 cm