(Transcription of audio on video)
Antifouling paint was developed to reduce drag on ship hulls by preventing the buildup of barnacles and other organisms, consequently making ships faster and more fuel efficient. However its propensity for wider impacts on the marine environment had been grossly underestimated. The chemicals used prevented molluscs like oysters from reproducing, and in the 1970's and 80's widespread collapse of mollusc stocks in and around harbours was reported. These types of paints have now been banned on small vessels, and complete phase out from global shipping fleets is planned by 2008.
Source: SOER 2005