Research is needed to identify algal species having high food values 
and rapid growth rates. Preliminary research indicates that manip- 
ulation of growth conditions and nutrients can induce accumulation 
of particular components altering, for instance, the protein-fat ratio 
of algae. This metabolic flexibility, in addition to offering the pos- 
sibility of tailoring composition to suit predators’ nutrition, may 
provide new means of obtaining high yields of fats, sterols, antibiotics, 
and vitamins (see sec. 6.4). 
2.6. SUMMARY 
No one of the approaches outlined above will suffice. The total de- 
mand for animal protein by the world’s population cannot be met ade- 
quately for many years, probably not until the turn of the century 
when, it would be hoped, the world’s population will have been stabi- 
lized and agricultural and aquicultural technology will have had an 
opportunity to catch up. We cannot expect to close this gap unless 
we begin now. 
Clearly, the United States ie behind other nations in the tech- 
nology of fishing and aquiculture. Future food problems of the world 
require that we develop these technologies and assist other nations to 
develop them. The Panel assigns very high priority to this task and 
further notes that to foster the needed technology, at least in the early 
stages, will require support by the Federal Government, both in its 
own laboratories and in extramural institutions. 
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