Table 1. 

 World Aquaculture Production for 1971-1978 



Production 



Species groups Thousands of Millions of Percent of 



metric tons pounds total 



Finf ish 

 Marine 



Milkfish (Philippines, 207 , 456 3.7 

 Indonesia, Taiwan; 

 1973-74) 

 Yellowtail (Japan; 1971) 52 

 Salmonid net cage culture 



(1975) 100 



Salmon ocean ranching 



(USA, Japan, USSR; 



1977-79) 200. 



Others (1978) 100 



Subtotal 659 



Freshwater j 



Carp, tilapia, others 



(1978) 2528 5573 44.9 



Subtotal 2528 5573 44.9 



Molluscs 



Oysters (1975) 652 



Mussels (1975) 591 



Clams, scallops, cockles, 

 other molluscs (1975) 132 



Subtotal 1375 3031 24.4 



Crustaceans 



Shrimp and prawns (1975) ^^ 

 Subtotal 16 



Seaweeds (1975) 1055 



Subtotal 1055 



Total 5633 12417 100.0 



Excluding sport, bait, ornamental fish, and pearls. 

 Source: Ryther, J. H. 1981. Mariculture, ocean ranching and other 

 culture-based fisheries. BioScience 31 (3) :223-230. 



