Seaweed Gracilaria and hypnea are sources of industrial phycocolloid,
but no buyers are immediately apparent. They have value in
domestic markets as food species, and traditional fisheries exist for
these two seaweeds in Fiji Islands and in other places. It is worth
noting that both gracilaria and hypnea are suitable food species for
use in trochus and green snail aquaculture, so this alone could justify
some limited aquaculture production of these two seaweeds.