Increased numbers of sea lice in farmed salmon could affect wild fish too.
Leaping salmon
A successful restoration project on the Swindale Beck River provides an ideal habitat for breeding fish. 
Eurasian beaver
Anglers’ fears that the reintroduction of beavers to the UK will harm trout and salmon populations may be unfounded, scientists say.
Learn the leaping fish's secret to soaring over waterfalls. 
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