Halimeda tuna reaches 15 cm. Green alga made of flattened calcified segments linked in a chain resembling a miniature cactus. Older segments detach and actively contribute to calcareous sand formation on Mediterranean bottoms. Lives on rocky walls and rubble from 1 to 70 m. Slow growing. Major ecological role in carbonate sedimentation on reefs and coralligenous drop-offs.
Frequently asked questions
How big is the Halimeda?
Halimeda (Halimeda tuna) reaches 5–15 cm in length.
At what depth can you find the Halimeda?
Halimeda is found between 1–70 m deep.
Is the Halimeda dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Halimeda?
IUCN status: Least concern (LC).
Where can you find the Halimeda?
Found in: Asian Pacific, Caribbean, East Atlantic, Indian Ocean & Red Sea, Mediterranean, Eastern Pacific.