Hyde OptiMarin LLC, a joint venture of Hyde Marine Inc. of Cleveland, Ohio and OptiMarin A/S of Stavanger Norway, is delivering four new full-scale OptiMar Ballast Water Treatment Systems during 2001, systems designed to control the spread of Aquatic Nuisance Species in ship's ballast water. Hyde OptiMarin delivered the first ever full-scale ballast water treatment system using ultraviolet light with cyclonic separation pretreatment for installation aboard the cruise ship "Regal Princess". This system has been operating continuously since May 2000. The first new system was installed in August 2001 aboard the cruise ship "Sea Princess". The 220 ton/hr.