Japanese seaweed (or wakame) is a highly invasive seaweed that can grow to 3m in length and has green-brown fronds. It grows in sheltered temperate waters, forming dense forests at depths of up to 15m and can quickly displace native habitats.
These native species may be confused with this marine pest.
Cray weed/Strap weed
Learn to recognise, and be aware of, the Japanese seaweed (or wakame) so that you can report any suspected new sighting.
If you see this pest in NSW, please report it immediately