Dissolved+Oxygen+Project

1. Dissolved Oxygen

3. This was an overall positive test, because we took water samples of the water and the DO level came out to be a 9.2 and trout and salmon only need a 5 to live in. 4.If the river at Mashmoquet was to be unhealthy than the river would be lower than 5, because the ecosystem for the river consists of trout pumpkin seeds and other small creatures. 5. We had three different groups doing dissolved oxygen and out of the three groups the average dissolved oxygen readings came out to be around 9. 6. Mashmoquets water quality turned out to be very healthy

 See notes from lab Dissolved oxygen enters the water in a couple ways. One way is through the process of photosynthesis in aquatic plant life. The other is through diffusion of oxygen in the air at the surface. Ideally a good level of dissolved oxygen is 7 - 11 mg/L. This level is good enough for most stream fish to thrive. A level of 4-7 mg/L is good for most pond animals; 2 -4mg/L is good for few species of aquatic animals. Anything less than 2mg/L is not enough for most animals to survive.