A-7.1 Changes in Productivity of Chickens, Dairy Cows, Swine, Norwegian Salmon and Tropical Finfish from 1940 to the late 1980's
A-7.2 Indices of Export Prices for Fish, Beef, Pork and Chicken from 1975 to 1993
A-7.3 Global Marine and Aquaculture Yield from 1950 to 1993
A-7.1 Changes in Productivity of Chickens, Dairy Cows, Swine, Norwegian Salmon and Tropical Finfish from 1940 to the late 1980's. (Source: The ICLARM Quarterly NAGA, April 1991).
Productivity of terrestrial animals for meat and milk has increased much more than certain aquatic species. Although there have been significant gains in productivity of Norwegian salmon in recent years, there has been little or no increase in the productivity of tropical finfish.
A-7.2 Indices of Export Prices for Fish, Beef, Pork and Chicken from 1975 to 1993. (Source: Peter Weber [1995]. Protecting Oceanic Fisheries and Jobs. In Lester R. Brown. State of the World. A Worldwatch Institute Report. Progress Towards a Sustainable Society).
Since 1985, export prices have increased significantly for fish in relation to beef, pork and chicken - in part reflecting a leveling off in overall yield of fish in recent years. Such price increases have significant implications concerning the availability of valuable fish protein to poor people in developing countries.
A-7.3 Global Marine and Aquaculture Yield from 1950 to 1993. (Source: Peter Weber [1995]. Protecting Oceanic Fisheries and Jobs. In Lester R. Brown. State of the World. A Worldwatch Institute Report. Progress Towards a Sustainable Society).
Global marine and aquatic yields from 1950-1993 reflect a steadily increasing amount until the late 1980s. Marine catch began to level off and even drop during this period while aquaculture production - although not a large part of the total global yield-has increased steadily since the early 1980s.
