Cleaning of Newport Harbor of invasive algae species completed, but diver surveys will continue 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 earlier this month. (Kevin Chang / Staff Photographer) Print Vacuum dredging of an invasive algae species out from Newport Harbor was completed earlier this month, but city officials extended a local emergency declaration on the issue to allow for federal and state officials to complete the final stages of its removal. Divers will soon be conducting surveys in and around Newport Harbor over the next few weeks to check for any other signs of