When marshes are lost, young salmon lose food and shelter.

Barges and tanker trucks have been used to give young salmon a lift past the dams.

The young salmon must be coming up the Severn by this time.

In the wild, natural attrition of eggs and young salmon is high.

And we're very concerned about what happens when this chemical leaks off the beach and gets into the systems of young salmon.

Fingerlings are young salmon ready to leave freshwater for the ocean for the first time.

Q: How many of the young salmon released from hatcheries come back as adults?

There, the young salmon are released into the ocean far from any wild salmon streams.

But it is also the leading killer of young salmon.

It has been estimated that as many as 95% of young salmon introduced in this way perish.