Map of aquaculture areas in New Zealand | |
Aquaculture production in tonnes, 1950–2006 |
Aquaculture started to take off in New Zealand in the 1980s. It is dominated by mussels, oysters and salmon. In 2007, aquaculture generated about NZ$360 million in sales on an area of 7,700 hectares. $240 million was earned in exports.
In 2006, the aquaculture industry in New Zealand developed a strategy aimed at achieving a sustainable annual billion NZ dollar business by 2025. In 2007, the government reacted by offering more support to the growing industry.
Aquaculture is the general term given to the cultivation of any fresh or salt water plant or animal. It takes place in New Zealand in coastal marine areas (mariculture) and in inland tanks or enclosures.
Aquaculture in New Zealand currently (2008) occupies 14,188 ha. Of that area, 7,713 ha is in established growing areas and is owned by the aquaculture industry, 4,010 ha is used to enhance the wild scallop fishery and belongs to the Challenger Scallop Enhancement Company, and 2,465 ha is an exposed site six kilometres offshore from Napier where trials are being undertaken by a private company to test the site’s economic viability.
In 2005 the aquaculture industry provided direct employment for about 2,500 full-time equivalents, mostly in the processing sector. A similar amount of indirect employment resulted from flow-on effects. The aquaculture industry is important for some coastal areas around New Zealand where there is limited employment. This applies particularly to some Māori communities with traditional links to coastal settlements.
Marine aquaculture, mariculture, occurs in the sea, generally in sheltered bays along the coast. In New Zealand, about 70 percent of marine aquaculture occurs in the top of the South Island. In the North Island, the Firth of Thames is productive.
There are three main species in the New Zealand aquaculture industry: the green-lipped mussel, the Pacific oyster and king salmon. In 2006 these three species generated $357 million in sales. Mussel accounted for 63 percent of this value, Pacific oysters 9 percent and king salmon 28 percent.