Survival of pacific bluefin tuna hinges on finding a way to keep them from dying – the fish were caught by Japanese nets during the Second World War, and had survived but were not1 인샵 released back into the sea. But the catch is now expected to drop. «A big part of the Pacific tuna industry is ge구로 출장 안마tting off-line,» says the report’s author, Ian Stewart. «We’re worried about the industry, about what happens when the net goes up.» As the US has invested in sea defences, it has found that large parts of tuna still exist far from their spawning grounds, far from schools of them in places like New Zealand and Australia. But so far, commercial fishermen have managed only to catch around 100 a year.

Even more importantly, the report says, the vast majority of their catch still comes from US commercial fishing. «The huge profit margin on US tuna exports is really a question of scale,» says Stewart.

The authors say that if the US and Japan are to continue to trade, there will have to be «very significant changes», including: removing the ban on commercial fishing in most areas of the Pacific, which is now in place.

A shift t스웨 디시o more sustainable fishing techniques – by which they mean getting fewer fish onto American fishing boats – and shifting to more commercially sensitive species of fish.

New rules for sustainable fishing by 2020, based on the report. «We’re talking about a huge trade potential. But with the kind of big-ticket items that will be required on the market, to get these things in place to support commercial fishing, it could become just that big-ticket item,» says Stewart.

Japan’s fishing industry, which was already struggling with overcapacity due to the low population, is likely to suffer the most if the ban on US commercial fishing is lifted.

Image caption A large portion of Japanese tuna, caught mainly off Japan’s coast, is now caught in US waters

The move by Washington – which, last year, approved the sale of at least $25bn (£16bn) in arms to Japan – would also impact on the stocks of three other tuna species, one of which is endangered.

One of them, the large Japanese cod, has a history of suffering as a result of fishing gear and commercial fishing techniques. Its species status is still at risk.

But there are some other areas of concern, too, from illegal fishing, to environmental damage, or, to use the terms increasingly heard by industry, «climate change».

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