On March 7, last Thursday, we went to the Wenyu River again for our March data collection. The data collection process was very efficient and smooth, and my group was finished very quickly without running into any. technology related issues. But I did almost fall into the river (hence the photo below) and in the process of saving me and my phone, I snapped our thermometer in half. We were able to collect similar numbers compared to November, which were also positive numbers in the “teens”. We think that we had different results each month because we weren’t consistent with what device we were using, LabQuest or computer. But now, we thinks that LabQuest works best, and specifically plugging the probe into the second outlet.
For the first site, the amount of dissolved oxygen in the river was 13.57 mg/L, and the temperature was 9.5 degrees Celsius. Site #2 had 15.09 mg/L of dissolved oxygen, and the temperature was 10 degrees Celsius. The third site had 14.82 mg/L of dissolved oxygen and was 11 degrees Celsius. If we compare it to the November data collection that had similar results, you can see that the data table shows the temperature is warmer by an average of about 3 degrees Celsius in March. The dissolved oxygen has also increased by an average of about 1 mg/L. Something I’m wondering about is does the temperature have anything to do with the dissolved oxygen? When the temperature increases, does the amount of dissolved oxygen in the river increase as well? I’m wondering this because when the temperature from November to March increased, so did the amount of dissolved oxygen.