This is yet another study that shows that lice from fish farms kill wild salmonids. In this case the researchers reanalyzed a study and found a wild salmonid kill of 34%.
This has previously shown in other research. Check the Index to this site in October of 2014 to find the links to those studies.
From the study in Scotland in the immediately preceding post on this site, the paper, is item 4.
Here is a quote: "Research published in 2013 by a group of fisheries experts from Norway, Canada
and Scotland re-analysing data from various Irish studies, showed that the impact of
sea lice on wild salmon causes a very high loss (34%) of those returning to Irish
rivers (4) ."
The reference says this: (4) M Krkosek, C W Revie, B Finstad and C D Todd (2013) Comment on Jackson et al. "Impact of Lepeophtheirus
salmonis infestations on migrating Atlantic salmon, Salmo salar L., smolts at eight locations in Ireland with an
analysis of lice-induced marine mortality" - Journal of Fish Diseases.
The Scotland study in the last post goes on to say that fish farms claims of no harm are not true:
"There is also clear evidence that both wild salmon and sea trout are in decline in
Scotland’s ‘aquaculture zone’, whereas, generally, populations have stabilized on the
east and north coast where there is no fish-farming.
After examining east and west coast catch trends, fisheries scientists from the Rivers
and Fisheries Trusts of Scotland (RAFTS) concluded that:
“there is a clear trend of declining salmon catches, compared with catches on the
East coast, in areas where the Scottish aquaculture industry operates.
by SSPO [the Scottish Salmon Producers’ Organisation] that ‘the catch statistics
show salmon farming has had no effect on wild salmon catches’ does not stand up to
scrutiny. It is also apparent that the decline is greater for those areas whose juvenile
fish have to swim past larger number of salmon farms in order to reach the open
The fisheries scientists from Norway, Scotland and Ireland reviewed over 300 scientific
publications on the damaging effects of sea lice on sea trout stocks in salmon
farming areas to reach their conclusions.
So, Marine Harvest's plan to get ASC accreditation doesn't look good for their so-called 'profound' effect on their image. Fix the image, but not the problem. Sorry Jo Lunder et al, the scientists do not agree. Nor does anyone else.