Since adopting a 200-mile maritime boundary, many developing nations have gained expanded rights to marine resources. To acquaint decision makers and planners with the key role played by the marine sciences in efficiently managing and exploiting those resources, this report reviews information presented at a 1981 conference on international cooperation in marine technology, science, and fisheries. The importance of indigenous efforts to plan, manage, and develop marine science capabilities is discussed in relation to: coastal zone development and management; marine mining and drilling; fisheries science and management; aquaculture, mariculture, and saltwater agriculture; satellite and aerial monitoring of coastal and ocean regions; and future exploitation of marine resources. Also described are methods, current concerns, and new capabilities in the applied and social sciences and the contributions they can make to developing national policies for marine resource use and management. Appendices review the principal fields of marine science (chemistry, biology and biological oceanography, geology, and physical oceanography) and list titles of reports presented at the conference.