What are the types of kelp in the Great Barrier Reef?

The Great Barrier Reef primarily features a variety of macroalgae, including different types of kelp, though true kelp is less common due to warmer waters. Notable types include the giant kelp (Macrocystis pyrifera), which can thrive in cooler regions, and Ecklonia radiata, a more prevalent species found in temperate zones. Additionally, seagrass beds, which are often associated with kelp ecosystems, play a critical role in supporting marine biodiversity in the reef.