Because Azolla is a native species with numerous benefits for aquatic ecosystems, Council does not automatically remove it in response to aesthetic concerns. In warmer months when sunlight is plentiful, Azolla is likely to be more prolific. The removal of Azolla can actually have negative impacts on a waterway. If the Azolla is no longer there to take up nutrients from the water column, they become available for blue-green algae, which can bloom in nutrient rich environments.
Azolla growing at Park Central