Mold removal can be quite dangerous ....
Many of these mold mildew species can be quite dangerous, especially if you breathe in the spres and happen to be 'sensitive' to them. Go to the cendter of disease control website (CDC) and search there for precautions needed for mold removal. Killing the mold (clorox, bleach, etc.) only leaves the 'dead' material there to serve as a nutrient for subsequent infestations of other species. The BEST way to remove mold is by strong caustic detergent which dissolve the mold/mildew cells. Apply the STRONG detergent and let it soak into the fabric, etc. Whatever you do, WET the mold before you try to remove it as you dont want the spores getting into the air. Be sure to wear a quality dust mask or respirator when cleaning mold/mildew. Be sure to clean the hidden 'underspaces' - dark, damp, moist places where the mold can incubate and thrive. To prevent mold from 'resurfacing' .... spray on the strong detergent and let it dry on the surface; this will equate to what our ancestors sucessfully did to prevent mold -- whitewashing!!!! --- the spores will not grow on a surface that is 'caustic'. If the boat is to stored closed for a long period of time and cant be adequately vented (to prevent and to kill mold): get some paraformaldehyde crystals and put them in an open containers throughout the boat. The crystals will give off a gas that is toxic to mold and will kill/retard it. When returning to open the boat, allow the boat to thoroughly 'air-out' as paraformaldehyde gas is also toxic to humans as well as mold. Best removal medium is old fashioned lye soap or other 'strong' detergents. Use protection: gloves, goggles when using 'strong' detergents, and follow the 'directions' on the container exactly. Lye soap can be found at janitorial supply or farm supply stores. Be careful with the stuff as it can easily dissolve your skin and leave very slow healing sores.