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


Fishing for answers

Blog entry by Phil Crawford | April 27, 2011

Here’s a short quiz to test your tuna knowledge. 1.    Do you know where most of New Zealand’s canned tuna comes from? 2.    What else is being caught at the same time as that tuna? Don’t panic if you don’t know the answers. Most...

Progress for our oceans: UK retailer gives tuna a break and US supermarkets are ranked

Blog entry by Steve Smith | April 13, 2011

Credit: Alex Hofford/Greenpeace Tuna caught in the Pacific Ocean Great news! UK retailer Morrisons  has announced a new policy on tinned tuna, committing to stop sourcing fish caught via destructive fishing methods: this means...

Greenpeace calls on NZ tuna brands to stop destructive fishing

Press release | March 11, 2011 at 9:50

Auckland, 11 March 2011 - Greenpeace is calling on New Zealand brands to follow the lead of overseas canned tuna sellers to stop sourcing fish caught using methods which kill sharks and turtles.

You did it! Princes will indeed change their tuna, and so will Asda

Blog entry by Jamie | March 10, 2011

All rights reserved . Credit: Greenpeace/Kristian Buus Big news from the UK. It's with enormous pleasure that I can reveal that Princes has (finally) got the message that bycatch is killing the oceans and has announced...

Snapper, smarter than your average tuna?

Blog entry by Phil Crawford | March 9, 2011

Surprise. Tuna could learn a thing or two from stay at home snapper. How smart are fish – really? There may be a wide gulf between species when it comes to the brain power of our fishy friends. Pacific tuna, it seems, can be so...

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