Soft shell or long-necked clam (Mya arenaria)
- Very different shells; one has a distinctive large scoopedout projection & the other a pit. They fit together but gape at both ends when closed
- Shell is thin, oval, chalky, white with rough exterior & uneven growth lines
- Up to 15 cm long
- Buried up to 30 cm deep in sand, mud, clay & gravel mixes
- Mainly upper intertidal; also in shallow subtidal
- Outcompetes native bivalves, changes characteristics of sediments & composition of bottom dwelling communities
What you can do
- Inspect & clean niche areas & antifoul your vessel regularly
- Clean & dry equipment before transporting & using in a different location
Read the national biofouling management guidelines for your sector.
Report immediately Outside known locations!
- Note the exact locations
- If possible, collect a sample and freeze in a plastic bag or take a photo
- See www.marinepests.gov.au for your state contacts