Aquarium caulerpa (Caulerpa taxifolia)
What to look for
- Flattened 2D fronds.
- Pinnules upward curving.
- Pinnules attach directly opposite one another.
- Up to 15 cm long.
- >60 cm in deep water.
- Up to 100 m depth; exposed & sheltered estuaries, coastal lagoons & bays.
- Rock, sand, mud & seagrass beds.
- Overgrows native habitat & can establish vast beds on soft sediment, degrading fish habitat.
- Tangles in nets & anchors.
- Native in subtropical/tropical Australia.
- Introduced to Port River & North Haven Marina SA
- 14 coastal lakes & estuaries in NSW.
What you can do
- Inspect & clean niche areas & antifoul your vessels regularly.
- Clean & dry equipment before transporting & using in a different location.
- Check anchors & other equipment for tangled algae.
- Caulerpa taxifolia can live for two weeks out of water & reproduce from fragments as small as 2mm.
More information on this pest can be found on the National Introduced Marine Pest Information System.