Rising sea temperatures have been blamed for a huge increase in annual costs, including the loss of fish worth £7.75milion, at salmon farms operated by Marine Harvest (Scotland).
The firm, part of Norwegian fish farming giant Marine Harvest, said “fish health challenges” and treatment losses during 2014 were impacted by a slight increase in water temperature.
The health issues related mainly to sea-lice, algae and amoebic gill disease – all of which can be exacerbated by the smallest changes in temperature and be ruinous for salmon production.
Marine Harvest’s Scottish arm said its biological challenges were the main factor in increases across a number of cost categories…
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