phil thomas, chairman sspo. global population is increasing world total developing countries...
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Phil Thomas,Chairman SSPO
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Global Population is Increasing
World Total
Developing Countries
Developed Countries
Depending on assumptions about affluence, diet composition and food waste these figures imply an increase in total food production of 50-70% of current production & consumption.
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Projection of human energy and protein-food consumption (after FAO)
Energy(kcal/day)
Meat (g/d)
Milk (g/d)
1964-66 2358 66 202
1997-99 2803 100 214
Estimated 2030
3050 124 245
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What about fish?Total global consumption is increasing because of population
increase and increased consumption per head.
But FAO says: One-quarter of the world's fish stocks are overexploited,
depleted or recovering from depletion. There is no possibility of increasing fishing activity; in some cases the stocks may decline further.
About half of the stocks are fully exploited. They are being fished at or close to their maximum sustainable limit. There is no room for further expansion of fishing activity.
Around one-quarter of fish stocks are underexploited or partially exploited and could perhaps produce more.
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• Aquaculture provides an increasing proportion of fish supply; this will continue to rise.
• Global aquaculture production is circa 67 million tonnes. Most is produced in China /Asia. Main species there are low value carp, tilapia and other fresh water fish.
• EU production is relatively small but EU is the largest global importer of fish and seafood products and is only 40% self sufficient in supply. EU has a major structural deficit in fish supply.
Country World Production
(%)
China 66.6
Asia - China 22.8
Europe 3.3
South America 2.7
North America 1.3
Africa 1.2
Trends in Global Fish
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European EU Aquaculture
tonnes tonnes
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UK Aquaculture Production Shellfish
Pacific oystersNative oystersScallops QueensMussels* (97%:
£31.9m)ClamsCockles
FinfishSalmon* (90%,
£400m)Trout* (9%, £45m)HalibutTurbotSea bass(Cod)
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Mussels
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Trout
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Annual Scottish Farmed Salmon Production
The Crown Estate &Islands Councils
Interim Arrangements
Town & Country Planning Act
Tonnes x 1000Anticipated
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Marine Scotland Salmon Fisheries Regions
EastNorth EastMoray FirthNorthNorth WestWest CoastClyde CoastSolwayOrkneyShetlandOuter Hebrides
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Plastic Pens
After Hanlon
(After, Chopin, 2010)
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Feed and NutritionA conversion ratio of caught fish to farmed salmon
of 5:1 is often quoted. This figure is incorrect and based on an incorrect set of assumptions.
Modern salmon nutrition and aquaculture feed use provides a conversion rate of 1.25:1. However, about 25% of fish meal is derived from waste from fish processing.
Inclusion rates of fish meal in salmon diets have been reducing progressively as feed technology develops.
The notion that salmon farming is ‘not sustainable’ because of its fish-feed needs is incorrect.
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World Fish Meal Production
Aquaculture Feed
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(After Skretting, 2010)
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Marine Scotland Salmon Fisheries Regions
EastNorth EastMoray FirthNorthNorth WestWest CoastClyde CoastSolwayOrkneyShetlandOuter Hebrides
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Distribution of Scottish Salmon Farms West Salmon
FarmsEast Salmon
Farms
Shetland 107
Orkney 19
North West 42 North 2
West Coast 41 North East 0
Clyde Coast 15 Moray Firth 0
Outer Hebrides
45 East 0
Solway 0
Total sites 271Total consented biomass 298, 113 tonnes
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Why are farms distributed like this?History, Policy, and Planning
Salmon Catch Distribution
Historically salmon farming started in west coast and island areas because of the water quality and suitability of sites.
Government Planning Policy in 1997 to locate farms to the west coast and islands.
Scottish Government Locational Guidelines based on predicted nutrient enhancement, benthic impact and natural heritage sensitivities direct location.
TotalCatch
% EastCoast
% WestCoast
1970 409,032
85 15
1985 272,552
84 16
1990 169,009
81 19
1995 180,143
85 15
2000 101,498
85 15
2008 101,519
83 17
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That’s All Folks!