Landcatch Natural Selection said the research could create the "perfect salmon" and revolutionise the fish farming industry.

BBC: Wild fish rod catches high, says Scottish government

Scotland's fish farming industry could face stricter regulation through new legislation.

BBC: Scotland's fish farming faces stricter controls

But what really separates Qian Hu from the many mom-and-pop businesses of the tropical-fish-farming industry is the attention paid to safely shipping such a fragile creature to customers overseas.

FORBES: Magazine Article

In practice, they provide cheap labour (mainly from Asia) for the garment industry, farming and fish-processing.

ECONOMIST: Japanese immigration

Instead, the fishing industry processes them into fish meal and oil to make food pellets for salmon farming and livestock feed - especially for Danish pigs.

BBC: Ministers consider sandeel fishing ban