What are biotic factors that affect Neptune's necklace (i.e what predators concern them)?

Neptune's necklace, a type of seaweed, faces predation from various herbivorous marine animals, particularly certain fish and invertebrates such as sea urchins and snails. These grazers can significantly impact the health and abundance of Neptune's necklace populations by consuming the algae. Additionally, competition with other marine plants and algae for space and resources can also affect its survival. Overall, both direct predation and competition are critical biotic factors influencing the distribution and health of Neptune's necklace.