Ken Whelan

And it gives us a great indication as to what's happening.

And that more or less forces them, as well as their instinct to move, it forces them into shoals.

And those shoals go down then and into the ocean.

That's an interesting scientific question as to whether they stick in those shoals or not.

The honest answer is at this stage we don't have enough information.

Absolutely.

And it is just extraordinary.

We have identified now what we call the Smolt Highway.

And that leads up to a place off the west coast of Norway called the Voring Plateau.

And the energetics are amazing because these little fish are about 12 centimetres when they go out.

They're going to be 55 to 6 centimetres when they come back.

They ain't going to do much swimming.

Energetically, they have to start growing the minute they hit the sea.

So they have to be in a big moving current that's actually going to bring them towards where they want to go.

Yet they have to change currents at some points and they're going in a direction as well as living in the current.

It's just extraordinary.

Same as your birds.

You sit there and you just do not believe what you're seeing.

I don't know in any detail, I stand to be corrected on this, but I would assume that is exactly the same as we see in some of the fish, where in reality what you have is inside that embryo will be a system whereby it actually develops the actual food resources that it requires.

Well, you know, we were talking on the previous programme about the smells and the Greenland shark and so on.