4.8 COMPARISON OF REPORTED UNITS IN THE LITERATURE IV~49 



4.9 NUMERICAL MXELING W-50 



4.10 ALTERNATIVES TO ORGANOTIN ANTIFOULING PAINTS IV-51 



4.10.1 Alternative Toxins IV-52 



4.10.2 Nontoxic Alternatives IV-53 



4.10.3 Disruption of Fouling Succession IV-53 



IV-ii 



