Objectives

The objective of the lab was to test the amount of dissolved oxygen in different samples of water in New Jersey. After calculating the dissolved oxygen through the Vernier and Winkler method, we had to calculate the net productivity, gross productivity, and respiration rate for the different water samples with different amounts of sunlight. Through identifying different biological factors affecting the solubility of dissolved cases in the water samples, we were able to identify the importance of carbon and oxygen cycles in an ecosystem. Through putting screens on different water samples, we were able to identify the effect of light and nutrients on photosynthesis. Also, we also identified many different microorganisms living in the various water samples.