Shellfish harvesting closures across parts of the Hauraki Gulf have been extended for another two years, with the new restrictions taking effect on Friday, 7 August.

Oceans and Fisheries Minister Shane Jones said the extension follows a request from three iwi — Ngāi Tai Ki Tāmaki, Ngāti Tamaterā Treaty Settlement Trust, and Ngāti Pāoa Iwi Trust — to help replenish local shellfish populations, RNZ reports.

The closures ban the taking of mussels, pāua, and packhorse rock lobster within one nautical mile of Waiheke Island. Cockles cannot be picked at Umupuia Beach in East Auckland. In Coromandel, Te Mātā and Waipatukahu are closed to the taking of cockles, mussels, oysters, and pipi.

The three iwi are part of the Pou Rāhui Research Project, which combines mātauranga Māori (traditional Māori knowledge) with scientific tools to restore marine species that are considered taonga, or treasured.

According to Ministry for Primary Industries fishing rules published in June, the Hauraki Gulf shellfish closure applies to all shellfish and runs from 29 June 2026 to 28 June 2028, MPI states. MPI had earlier proposed a two-year temporary closure for some shellfish species, under which Waiheke Island would be closed to the harvest of mussels and rock lobster, MPI consultations page. The confirmed closures cover rockpools and the near-shore strip north of Auckland, Boating NZ reported in February.

Environmental Defence Society Policy Director Raewyn Peart said a ban on almost all recreational shellfish harvesting in the Hauraki Gulf is long overdue, EDS said in June.

Information and maps on the closures are available on the MPI website.

The closures are made using a section of the Fisheries Act that lets the Minister ban or restrict fishing in a specific area for up to two years at a time. Iwi can ask the Minister to put these closures in place, and that is the standard process used here.

For people who fish in the affected areas, the practical effect is simple. You need to check the MPI maps to see if your fishing spot is covered. At some sites all shellfish are off-limits, while at others only certain species are banned. Waiheke's one-nautical-mile zone covers a large stretch of coastline. At the Coromandel sites, the range of species is wider — oysters and pipi are included alongside cockles and mussels — so gathering shellfish in those areas is effectively shut down.

The broader context here is worth understanding. These temporary closures can be renewed every two years, so the two-year limit is really just a review point, not a hard stop. Iwi can reapply, and repeated extensions can add up to long-term protection without going through the political process of creating a permanent marine reserve. For the Hauraki Gulf, where a major conservation plan called Sea Change has been slow to get off the ground, these rolling closures may end up doing more practical conservation work. The catch is that temporary closures are not permanent — they can lapse if nobody renews the application, and a minister can always decide not to extend them.

The extension also comes against a backdrop of wider pressure on the Gulf's fisheries. Disputes between recreational and commercial fishers, declining shellfish numbers in coastal areas, and slow progress on marine protection laws have all kept the Gulf in the policy spotlight. These closures will not solve those problems, but they do reduce the area where harvesting can happen — at least for the next two years.