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Wild Salmon Are Dying - Are Fish Farms Responsible?

PROCEEDINGS OF THE ROYAL SOCIETY, BBC(U.K.), DER SPIEGEL (Germany)

Worldcrunch

LONDON - A long-term international study of wild Atlantic salmon has discovered that large numbers of free-ranging salmon are being killed by parasitic sea lice, the BBC has reported. Sea lice, which attach themselves to salmon and then eat their flesh, blood and tissue, were responsible for up to 40 % of the deaths of young wild salmon at sea.

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(Atlantic salmon roaming free - Hans-Petter Fjeld)

Sea lice occur naturally. However, as Der Spiegelreports, in the past 30 years the number of wild Atlantic salmon has fallen by 45 %. According to the study, published by the Royal Society for Biological Sciences, intensive farming of salmon, where sea lice are a common problem, is implicated in the increase of deaths of wild salmon from the parasite.

The joint study, which began in 1996, involved 280,000 individual fish. It was carried out by biologists from Scotland, Ireland, Norway, New Zealand, and Canada.

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This Happened — May 27: Dunkirk Invasion

The invasion of Dunkirk started on this day in 1940, during the early stages of World War II. Approximately 338,000 Allied troops were evacuated from Dunkirk, including more than 200,000 British soldiers.

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