He adds that fish frozen immediately at sea is fresher than so-called fresh fish.

BBC: Mislabelled fish slip into Europe's menus

Landel, then general manager for eastern Africa at Sodexho Alliance, hopped on a plane to Nairobi, where he loaded up on a week's supply of frozen meat and fish.

FORBES: At your service

The FSA surveyed 336 fresh, frozen and processed sea fish and shellfish for mercury content, including trout, salmon, tuna, halibut, hoki, sea bass, lobster, mussels and prawns.

BBC: Predatory fish health warning

It's not off, but our fish is frozen within an hour-and-a-half of coming out of the water and we use it on the day when we defrost it.

BBC: Mislabelled fish slip into Europe's menus

He was amazed to find that freshly caught fish and duck, frozen quickly in such a fashion, retained their taste and texture.

FORBES: Weak Signals, Strong Ideas

He says the problem with mislabelling happens more with "wet fish" - fish which is not fully deep-frozen but which is only kept cold on ice.

BBC: Mislabelled fish slip into Europe's menus

The fish he uses, for example, is frozen at sea and labelled immediately.

BBC: Mislabelled fish slip into Europe's menus

It could help fish farmers, extend the shelf life of frozen food, improve surgery and tissue transplants, and make plants more tolerant of freezing.

BBC: NEWS | Science/Nature | Antarctica's resources 'at risk'

The ice was so thick and clean and glimmery that the fish and errant golf balls were happy to be frozen in it.

NPR: Chapter 1

Dressed in white overalls, hooded and gloved, they fillet 25 tons of fish a day, doing spot inspections for worms or parasites before the catch is frozen and shipped to stores and restaurants domestically and abroad.

FORBES: Blue Waters Gray Areas