Note
A strain of Gracilaria sp., G-16, which produces an agar with high gel strength was grown under controlled culture conditions at 3 different temperatures, 2 light quantum fluxes, 2 salinities, and under N enrichment
and starvation. Best productivity occurred at 24°C, followed by 32 °C, then 15°C. Higher light quantum
fluxes and nitrogen enrichment also contributed to greater productivities. Salinity changes of 17‰ versus
33‰ showed minimal effect on productivity.