How to Do Animal Rights
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Length up to 80 cm (2 ft 6 ins). Lives throughout the north Pacific. Can live up to 15 years. Chilean jack mackerel (Trachurus murphyi). 2.5 million tonnes in 2001. Length up to 70 cm (2 ft 4 ins). Found in south Pacific and south-west Atlantic. Feeds mainly on fish larvas and small shellfish. Can live up to 16 years.
Farmed Fish (Table 6.7.2) People farm about 38 million tonnes of fish per year. This is a 38-fold increase since 1950 when about one million tonnes was farmed. In 2001 the US ranked 10th at 0.5 million tonnes of farmed fish and Britain ranked 19th with 0.2 million tonnes of farmed fish.
Table 6.7.2. Tonnes of Farmed Fish in 2001. Top Five Producing Countries & World Total. Data include shellfish. 1 tonne = 1 ton. China
26.1 million tonnes
India
2.2 million tonnes
Indonesia
0.9 million tonnes
Japan
0.8 million tonnes
Thailand
0.7 million tonnes
World Total
38 million tonnes
Source: see Notes, below. The World's Three Most Farmed Fish/Shellfish By weight. 1 tonne = 1 ton. ●
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Pacific king oyster (Crassostrea gigas). Also called Japanese oyster. 4.2 million tonnes in 2001. Usually 8 to 30 cm long (8 to 12 inch), a filter feeding oyster favouring shallow waters, introduced around the world from Japan. Reared primarily in estuaries. Grass Carp (Ctenopharyngodon idellus). 3.4 million tonnes in 2001. Grows up to 1.5 m and 45 kg (5 ft and 90 lbs). Lives in lakes and rivers. Original home was China and eastern Siberia and now introduced around the world. Feeds on plants and invertebrates. Maximum reported age is 21 years. Silver carp (Hypophthalmichthys molitrix). 2.9 million tonnes in 2001. Grows up to 1.0 m and 50 kg (3 ft 3 inch and 110 lbs). Prefers slow flowing waters of large rivers. Original home China and eastern Siberia but introduced around the world. Feeds on phytoplankton and zooplankton.
Notes Data for both tables are from S Vannuccini (2003): Overview of Fish Production, Utilization, Consumption & Trade. Food & Agriculture Organization of the United Nations, Fishery Information, Data & Statistics Unit. Data for „The World‟s Three Most Wild Caught Fish‟, for „The World‟s Three Most Farmed Fish/Shellfish‟ and for fish elsewhere are from Food and Agriculture Organization of the United Nations (FAO), Fishery Information, Data and Statistics Unit. 153