The pH should remain in the center of the scale so the fish will be happy. The dissolved oxygen measures the amount of oxygen gas in a volume of water at a particular temperature and pressure. This lets us know if the fish are getting enough oxygen through their gills or not. Dissolved oxygen can also be an indicator of nutrient pollution like fertilizers and organic pollutants like sewage. Turbidity refers to the waters sediment levels.
Cloudy water can cut down on sunlight penetration and effect plant growth.
These levels must be carefully proportioned to the number of plants, animals, and size of the bayou or else all of the organisms will die. While testing Armand Bayou's water, we tested things such as salinity, dissolved oxygen, water temperature, pH, turbidity, sample temperature, and several field observations. In the testing of the dissolved oxygen, we found the first titration came out as 7.2 and the second one was as 8, which averaged out to be 7.6 ppm. Salinity was measured using a hydrometer, which determined a salinity of 1.5 ppt. The pH, standard units, was found to be 7.7.