Sagelva salmon farm, on Hjorrund Fjord, with 200,000 Atlantic salmon in each of eight pens. All the fish come from parents that were captured in the Vosso River (near Bergen) in 1960. The fish are fed from a barge via tubes that spray pellets of fish meal, fish oil, and soybeans into the water. I was told that no antibiotics are used, but some colorants are added to the food to give their flesh the orange color typical of wild salmon. The fish average 18 months in the pens and go from 200 grams to 5 kg, and gain approximately 1 kg of body weight for every 1 kg of food. The fjord is approx 70m deep underneath the pens, and goes to over 441m in the center, allowing the fish excrement to become widely distributed with the tidal action, while the fjord protects the pens from wind and wave damage. After each generation of fish (18 months) the pens are left empty for six months to be cleaned and reduce the risk of diseases and parasites.
The peaks beside the fjord rise to 1,564 M. This farm is owned and managed by MOWI, formerly Marine Harvest, the biggest grower of farmed salmon in the world, with approx. 25% of market share.
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- Europe's Food Revolution