Divers remove invasive algae from Newport Harbor Field manager Robert Mooney shares pieces of an invasive algae species, Caulerpa prolifera, that was filtered through a filtration system set up at China Cove Beach in Newport Beach on Wednesday. (Kevin Chang / Staff Photographer) Print Newport Harbor is saying goodbye to an invasive algae species that arrived in its waters earlier this year. Divers set out from China Cove Beach on Wednesday morning to extract the plant from the seafloor using vacuum pumps. The algae collected is then brought onshore and placed in a container where it and other solids are filtered out of the water. Once the filtering process is complete, the water is discharged back into the harbor.