People are being advised not to collect or eat shellfish in parts of the Bay of Plenty and Waikato regions after routine tests found levels of shellfish toxins above the safe limit.
The Ministry for Primary Industries (MPI) issued the public health warning yesterday and said anyone eating shellfish from the affected area was potentially at risk of illness.
The warning was in place from Te Ororoa Pt, just north of Tairua, down to Bowentown Heads but not including Tauranga Harbour.
The ministry said in a press release that tests on shellfish samples taken from that region showed levels of Paralytic Shellfish Poisoning (PSP) toxins above the safe limit of 0.8 mg/kg.
"Mussels, oysters, tuatua, pipi, toheroa, cockles, scallops, catseyes, kina [sea urchin] and all other bivalve shellfish should not be eaten."