Sebae Anemone

Overview

The Sebae Anemone (Heteractis crispa) is a prominent sea anemone species widely distributed across the tropical Indo-Pacific and Red Sea. Known for its leathery appearance, it serves as a vital symbiotic host for various species of clownfish and other reef-dwelling organisms.

Distribution & habitat

This species is found throughout the Indo-Pacific, ranging from the eastern coasts of Africa and the Red Sea to French Polynesia, and from Japan down to Australia. It typically inhabits sheltered areas of coral reefs, often anchoring its base in sandy substrates or within rocky crevices and branching corals.

Appearance

Heteractis crispa features a flared oral disc that can reach 20 to 50 cm in diameter. It is characterized by numerous long, slender tentacles that taper to a point, often displaying distinctive purple, blue, or green tips. The column is typically grey and covered in adhesive, white wart-like structures that assist in attachment to the substrate.

Biology & behavior

This anemone maintains a symbiotic relationship with zooxanthellae, which reside in its tissues and provide essential nutrients through photosynthesis. It is also a carnivore, using its tentacles to capture zooplankton and small invertebrates. Reproduction occurs both sexually, through the release of gametes into the water column, and asexually via scissiparity, where the individual divides to form a new clone.