D.O. stands for which of the following in aquatic systems?

D.O. in aquatic systems stands for Dissolved Oxygen. This is a crucial parameter in the management and health of aquatic ecosystems. Dissolved oxygen refers to the amount of oxygen that is present in water and is essential for the survival of aquatic organisms, including fish, invertebrates, and microorganisms.

These organisms require oxygen to breathe, carry out metabolic processes, and sustain their populations. Additionally, adequate levels of dissolved oxygen are vital for the overall biological activity and ecological balance within aquatic environments.

Monitoring and managing dissolved oxygen levels can provide insights into the health of water bodies, inform management practices, and contribute to the conservation of aquatic ecosystems. This understanding can help mitigate issues like hypoxia, which occurs when dissolved oxygen levels fall too low, leading to detrimental effects on aquatic life.