It is expected to observe lower levels of dissolved oxygen in the summer when compared to the winter. It is because cold water holds more dissolved oxygen.
Dissolved oxygen in aquatic environments
Cold water holds more dissolved oxygen (O2) when compared to warm water, thereby its levels are higher during this period.
In summer, the temperature in the aquatic environments is high, thereby decreasing the levels of dissolved oxygen.
Low dissolved oxygen can also be an outcome observed during excessive algae growth, which is mainly due to the presence of many phosphorus.
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