How does water temperature affect its ability to hold dissolved oxygen?

Water temperature significantly affects its ability to hold dissolved oxygen, and the relationship is inversely proportional. As the temperature of water increases, its capacity to hold dissolved oxygen decreases. This occurs because warmer water molecules have more energy, which causes them to move more vigorously. This increased movement makes it more difficult for oxygen molecules to remain dissolved in the water, ultimately reducing the amount of oxygen available for aquatic organisms.

Conversely, cooler water can dissolve more oxygen since the molecules are less energetic and remain in a more stable state, allowing for a greater concentration of dissolved oxygen. This principle is vital for aquatic life, as many species rely on adequate levels of dissolved oxygen to survive. Understanding this relationship is essential for effective water management and maintaining healthy ecosystems.