What is this staple Japanese dish? - 15 secs

Nori has been a staple of the Japanese diet for centuries.

But the industry that harvests the seaweed says it needs help in a tough economic climate.

Seaweed harvesting is the biggest business in the city of Futtsu, less than two hours' drive away from the capital Tokyo.

Despite this the locals - mainly fishermen - feel left behind by the recent economic upturn.