There is a strong relationship between oxygen levels and aquatic life. Oxygen is essential for most aquatic organisms, particularly fish and other animals that rely on it for respiration. High oxygen levels promote healthy ecosystems, supporting diverse species and enhancing biodiversity. Conversely, low oxygen levels, often caused by pollution or excessive nutrient runoff, can lead to hypoxia, resulting in fish kills and the collapse of aquatic ecosystems. Maintaining adequate oxygen levels is vital for ocean health.