What is a potential issue with floating structures for coral nurseries?

Floating structures for coral nurseries can indeed encounter the issue of overgrowth of organisms. In marine environments, when structures are submerged, they provide surfaces that can attract a variety of marine life, including algae, barnacles, and other encrusting organisms. This overgrowth can hinder the growth and development of corals, as it competes for space and resources such as light and nutrients.

The presence of excessive organisms can also lead to shading of the coral, affecting their ability to photosynthesize, which is crucial for their health and growth. Additionally, overgrown structures may complicate the maintenance of the nursery by requiring more regular cleaning and management to keep the focus on the corals themselves. Thus, understanding and managing biological overgrowth is essential for the successful implementation of floating coral nurseries to ensure optimal conditions for coral cultivation and growth.