An alert over toxic shellfish in Croisilles Harbour in the Marlborough Sounds has been issued today.
The Ministry for Primary Industries (MPI) has issued a public health warning people not to collect or eat shellfish which, in extreme cases, could kill.
And anyone looking to boost their lockdown menu runs the risk of becoming severley ill.
Routine tests on shellfish samples taken from this region have shown levels of Paralytic Shellfish Poisoning (PSP) toxins to be at dangerous levels.
Pāua, crab and crayfish may still be eaten if the gut has been completely removed prior to cooking, as toxins accumulate in the gut.
Symptoms typically appear between 10 minutes and 3 hours after ingestion and may include numbness and a tingling (prickly feeling) around the mouth, face, and hands and feet.
Difficulty breathing, dizziness, vomiting and respiratory failure can follow.
A spokesman says anyone becoming ill after eating shellfish from an area where a public health warning has been issued needs urgent medical attention.
“Phone Healthline for advice on 0800 61 11 16 or seek medical attention immediately.
“You are also advised to contact your nearest public health unit and keep any leftover shellfish in case it can be tested.”