Source: Kontali Analyse (2013)

Figure 2. Global fishery and aquaculture production, 2000-2011 (tonnes x million)
FAO Fisheries and Aquaculture Statistics and Information Branch 2013. Capture production   1950-2011. Aquaculture      production 1950-2011.
Available at 

Figure 3. Norwegian farmed salmon   volumes (tonnes x 1,000) compared with production cost and export price (Norwegian Krone) in real terms (2011=1), 1985-2011
Source: Norwegian Directorate of Fisheries: Norwegian Seafood Export Council

Figure 4. Annual use of antibiotics (kg) in Norwegian salmon production, 1980-2011
Source: Norwegian Directorate of Fisheries

Freshwater production of salmon smolts – note use of underwater lights for   photoperiod control of smoltification (Courtesy of Marine Harvest Ltd., Scotland)

Figure 5. Number of escaped salmon in relation to Norwegian salmon production, 1993-2012
Source: Norwegian Directorate of Fisheries

Close up view of salmon farm in Western Isles – note use of circular plastic pens with overhead anti-predator nets and central supports (Courtesy of Marine Harvest Ltd, Scotland)

Figure 6. Global production for 2011 of beef, pork, chicken and fish (capture fish versus aquaculture) Note: Land animal meat as carcass weight (millions of tonnes): capture fish and aquaculture as live weight equivalent (millions of tonnes) Source: FAOSTAT

Table 1. product yield, energy, and protein retention in edible parts of Atlantic salmon, pig, chicken and lamb (Source: Bjorkli 2002)
(a) Harvest Yield is yield gutted and bled animal
(b) Edible yield is ratio of total body weight that is normally eaten, muscle, body adipose tissue and liver, lung and heart for pig. Skin is excluded for all animals.
(c) FCR = (kg feed fed)/(kg body weight gain)
(d) Energy retention + (energy in edible parts)/(gross energy fed)
(e) Protein retention = (kg protein in edible parts)/(kg protein fed)

Figure 7. Carbon footprint and land occupation by Norwegian farmed salmon and Swedish pig and chicken Source: Hognes et al, 2011 SINTEF report (see below)

Comparison of occupation of agricultural land (top axis) and greenhouse gas (GHG) emissions (bottom axis) from production of 1 kilo edible Norwegian aquaculture salmon and Swedish chicken and pig. From project with SIK:

Figure 8. Overview of the nutrient flows and energy use in Norwegian salmon production in 2010. Source: Ytrestoyl et al, 2011 NOFIMA report no. 53/2011 ISBN: 978-82-7251-945- 1. 65pp

Table 2. Comparison of amino acid content in (a) salmonmeal and (b)hydrolysate with requirements of (c) chickens and (d) humans (Ramirez 2007)
(a) (b) Wright, 204 
(c) Nutrient requirement of poultry, 1994 (NRC) 
(d) Protein and amino acid requirements in human nutrition, WHO, Technical Report Series [2007(935):1-265]

Interior view of office on feed barge showing monitors for remote cameras and digital display of temperature and dissolved oxygen” (courtesy of Scottish Salmon Producers’ Organisation)