Table 2. Global aquaculture pmduction (t) by environment in 1987 (FA0 1989a).
---.*-
World
Major groups total
cultured Marine Freshwater Brackishwater Total (%)Finlish 403,571 6,005,630 384,240 6,793,441 51.
Crustaceans 34,806 61,592 478,508 574,906 4.
Molluscs 2,572,395 9,473 90,526 2,672,394 20.Seaweeda 3,133,981 (^13) 5,479 3,199,473 23.
Others 26,715 839 1 48 27,702 0.
Total 6,171,468 6,077,547 958,901 13,207,
Pemntage of
world total 46.7 46.0 7.
Table 3. Average annual growth rates of GDP and
aquaculture production in Asian countries during
1983-87.
Table 4. Population estimates (millions) for world,
developed countries and the main developing regions
of the world as assessed in 1984 (UN 1989b).
Aquaculturea GDPb
Country (% growth) (% growth)
China 30.66 11.
Japan 0.94 3.
Korea, Republic of 9.24 9.
Philippines 6.30 -0.
Indonesia 10.59 4.
Taiwan 6.89 8.
Vietnam 9.20 5.
Bangladesh 9.29 4.
Thailand 14.16 6.
Malaysia 1.92 3.
-.
.Basedon ADCP Aquaculture ?tlinutes(various issues);
FA0 Fish. Circ. 81 6,1989.
"Basedon AsianDev. Outlook 1989; ADB 1989; World
Development Report 1988.
aquaculture production is still only about
150 t. In Nepal, culturedfinfishproduction
(carps) increased from 150 t in 1982 to
5,175 tin 1988 - a huge relative increase,
but a small absolute tonnage.
Further Development
Demographic Considerations
The population of developingcountries
increased from 1.7 billion in 1950 to 3.
billion in1985 and afurtherincrease to 6.
World
Developed countries
Developing countries
Africa
Latin AmericdCaribbean
China
South Asia
Southeast Asia
Occ ania
billion by 2025 is estimated (UN 1989b).
Table 4 summarizes the picture. It is not
all discouraging. Feeding growing
populations poses a major, but not
insuperable, challenge if more productive
and profitable farming systems are
developed and implemented quickly.
However, demographic changes towards a
better balance between population and
resources are sorely needed.
Political and Economic
Considerations
In campaigns against poverty and for
environmental conservation, most
decisions and actions are taken by nation
states. However, natural habitats and