Canned tuna's secret catch

Check out the fishing method that is being phased out by New Zealand’s big canned tuna brands.

Video details

New Zealand’s five big tuna brands have committed to phase out a destructive tuna fishing method that kills sharks, turtles and baby tuna. This makes us the third country, behind the UK and Australia, to take steps to change to more sustainably caught tuna. This is good news for the Pacific tuna fishery which supplies most of New Zealand’s canned tuna. However, there is still more we can do to preserve tuna stocks and ensure we have tuna on our shelves, and in our Pacific Ocean, for the long-term:

  • The New Zealand Government must stand with our Pacific neighbours to ban the most destructive fishing methods, end overfishing and create marine reserves;

  • New Zealand’s tuna fishing companies must switch to more sustainable methods.

Until recently the Pacific had the world's last healthy tuna fisheries. These are now being overfished as industrial fishing fleets, which have exhausted tuna stocks in other oceans, are now concentrating their efforts in the Pacific.

All Pacific tuna stocks are in decline. Bigeye and yellowfin are the most at risk. Scientists have advised that fishing needs to be cut by up to 50 per cent to allow bigeye tuna to recover.

Many fishing fleets are using methods which are destructive catching five to 10 times more turtles, sharks and juvenile tuna compared to more sustainable fishing practices.

There are almost 6000 vessels licensed to fish in the Western and Central Pacific region. In 2012 those vessels caught over 2.6 million tonnes of tuna – around 60 per cent of the world’s tuna supply.

Foreign fishing vessels continue to steal tuna from the region, exploiting four pockets of international waters between Pacific islands nations. Illegal fishing is estimated to cost the Pacific region up to NZ$1.7 billion per year.

In 2013 we launched a report providing a blueprint for Pacific Island governments and regional bodies to promote a more sustainable and locally owned and operated tuna fishery in the region.

The report - titled Transforming Tuna Fisheries in Pacific Island Countries: An Alternative Model of Development makes detailed recommendations for how to develop smaller-scale and locally owned fisheries that will maximise economic returns, create local jobs and better protect countries’ precious tuna reserves for the long term.

The latest updates


Taiwan Government rewards illegal shark fin operation with license to fish in Pacific

Press release | September 11, 2015 at 15:57

Taipei, 11 September 2015 – The Government of Taiwan has acquired a retrospective fishing license for a boat Greenpeace busted illegally fishing in the Pacific Ocean with hundreds of shark fins on board.

Greenpeace ship busts illegal tuna fishing operation on the Pacific high seas

Press release | September 10, 2015 at 16:00

The Rainbow Warrior is at the scene of a serious pirate fishing operation taking place on the high seas of the Pacific Ocean.

Spanish and French Industry Wins Big As Excessive FAD Limits Agreed at IOTC.

Press release | May 4, 2015 at 15:16

Meeting in Busan, South Korea this week, the Indian Ocean Tuna Commission (IOTC) agreed to an unacceptably high limit on the use of fish aggregating devices (FADs), essentially maintaining the interest of the Spanish fishing industry.

Pacific Tuna Management a Void

Press release | December 5, 2014 at 19:20

Greenpeace is urging tuna traders and investors to fill the void created by the Western and Central Fisheries Commission (WCPFC)’s failure to manage Pacific tuna fisheries. “In the absence of any real action at this week’s WCPFC talkfest, the...

Greenpeace calls on WCPFC to ban FADs and high seas fishing

Press release | December 1, 2014 at 11:52

Greenpeace calls for urgent action to protect the economic and environmental sustainability of key Pacific tuna stocks as major tuna interests meet in Apia for the 11th Regular Session of the Western and Central Pacific Fisheries Commission (WCPFC).

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