They can quickly take over from native fish in rivers.

The recovery rate of fillets from whole fish is about 40%.

Now within a couple of years we've gone from fish to birds to insects.

Even without salt, the meat was a welcome change from fish.

Most of the exposure comes from fish in their mothers' diet.

You'd have to eat a lot to gain the same benefits as you do from fish.

It is also possible to get rare items from fish.

They'd make a change of diet from fish and grain, she supposed.

Encouraging from fish though, now's the time for him to make his move.

About 14 percent of the world's protein consumption comes from fish.