What factors can contribute to the health of coral ecosystems?

Balanced nutrient cycles and minimal pollution are crucial for the health of coral ecosystems. This is because corals rely on a complex relationship with zooxanthellae, the symbiotic algae that live within their tissues. These algae perform photosynthesis, providing essential nutrients to corals, which in turn provide a protective environment for the algae. When nutrient cycles are balanced, corals receive the right amount of nutrients essential for their growth and resilience. Conversely, if pollution disrupts these cycles, it can lead to excess nutrients such as nitrogen and phosphorus, resulting in algal blooms that can smother corals and reduce light availability essential for photosynthesis. Thus, maintaining minimal pollution and balanced nutrient levels is vital for sustaining healthy coral ecosystems.