radial sandbank in the Yellow Sea were investigated, and potential contributions to green
tides was analyzed. Ulva prolifera, Ulva flexuosa and Ulva linza were all appeared
throughout the investigated period. U. prolifera and U. flexuosa dominated attached Ulva
population on Porphyra rafts. Attached Ulva species biomass showed obviously spatial and
temporal variations. Temperature, Ulva microscopic propagules and human activities were …