Scientific name: Corbicula fluminea
This small clam was first found in the Waikato River at Bob's Landing near Lake Karapiro in May 2023.
Surveillance to date has found it at locations on a stretch of the river from Lake Maraetai in the south (upriver from Lake Karapiro), downstream to Hamilton City.
They are often seen much smaller than 2-3cm, are yellow/brown with distinctive ridges on the shell.
For full information, including how to Check Clean Dry to prevent spreading it is here
If you think you've seen it - report online here or 0800 80 99 66
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