Shellfish biotoxin alerts
Do not collect or eat shellfish from areas where shellfish biotoxin warnings have been issued.
All warnings are up to date
Warnings are reviewed weekly following sampling results. Information on this page is then updated if needed.
If you have questions, email info@mpi.govt.nz
Current warnings
Previous changes
- 12 November: West Coast – Waipapakauri to Kaipara warning removed
- 6 November: West Coast – South Head to Tirua Point (south of Kawhia) warning removed
- 2 October: Hawke's Bay Warning removed
Public warnings about toxic shellfish
Shellfish and seawater samples are taken every week from popular shellfish gathering areas around New Zealand and are tested for the presence of toxic algae. If the shellfish are not safe to eat, then public health warnings are issued and signs are posted at affected beaches.
Subscribe to email updates about shellfish biotoxin warnings
If you get sick after eating shellfish
If anyone becomes ill after eating shellfish from an area where a public health warning has been issued:
- phone Healthline for advice on 0800 61 11 16, or seek medical attention immediately
- advise your nearest public health unit
- keep any leftover shellfish for testing.
Find your nearest public health unit
Commercially harvested shellfish
The information on this page relates only to the non-commercial (recreational and traditional) taking of shellfish. Commercially harvested shellfish – sold in shops and supermarkets, or exported – is subject to strict water and flesh monitoring programmes by MPI to ensure they are safe to eat. If commercial shellfish growing areas are affected by shellfish toxins, the areas are closed for harvesting, and the shellfish do not enter the food chain – in New Zealand or in overseas.