In aquatic ecosystems, what role do decomposers play?

Decomposers play a critical role in aquatic ecosystems by assisting in nutrient recycling. They break down dead organic matter, such as fallen leaves, dead plants, and animal remains, transforming it into simpler substances. This process not only cleans up waste but also releases essential nutrients back into the environment, making them available for use by primary producers like plants and algae. By recycling nutrients, decomposers help maintain the balance of the ecosystem, support plant growth, and contribute to the overall health of aquatic habitats. Their activity is vital for sustaining the food web and ensuring the productivity of aquatic systems.