Figure 2. Example of monthly dissolved oxygen fluctuation at the Gulf Jackson lease area, Levy County, Florida, in October 2003. Dissolved oxygen is shown as A) mg/L, and B) % saturation. During the month of October, temperature fluctuated by only 6°C (10.8°F) and, therefore, the variation in % saturation due to temperature change was relatively small. As a consequence, graph A and B look similar.