General Description

Delicate alga with small ovoid-elongate beads (vesiculate) arranged loosely on the main axis (stolon) that is sometimes branched and arises from rhizomes (running stolons). Light to medium green. Up to 15 cm long (thallus).

Biology

This beaded algae can be abundant on rock surfaces despite its small size. It was formerly known as Caulerpa geminata. Tropical species of this genus are used for ornamental decoration in household aquariums.

Habitat

Tidal pools and low tide level in rough waters, shallow subtidal in calm waters, to depth of 25 m.

Reefs

Coastal shores

Distribution guide

New Zealand, Pacific Islands, Korea and Australia.

Species Group

Seaweeds and seagrasses › Green algae

Depth

Shore (0-1 m)
Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

15 cm

Diet

Photosynthetic - sunlight

Commercial Species

No

Global Dispersal

Recorded in Australia

Identify

• Seaweeds and seagrasses

Conservation Status

• DSE Advisory List : Not listed
• EPBC Act 1999 : Not listed
• IUCN Red List : Not listed