简介:GracilariatenuistipitatavarliuiZhangetXiaiscultivatedattwodifferentsalinities(21,33)inthelaboratoryfor4weeks.Thedailygrowthrateisdetermined.Thetotalagaryieldandfractionalagarcompositionareanalyzed.Resultsshowthatalgaegrowfasterinlowsalinity.Thetotalagaryieldishigherunderhighsalinityconditionsthanunderlowsalinityconditions.Amongtheeightfractionsextracted,theyieldsofcoldwaterextractand40%ethanolextractareaboutthehighest.Inlowsalinitiestheyieldsofautoclavedextractand60%ethanolextractarehigher,whiletheyieldofcoldwaterextractislowerrelativetohighsalinities.