Provides citations and abstracts to the international technical literature on marine and brackish-water environments. Focuses on marine biology and physical oceanography, fisheries, aquaculture, non-living resources, meteorology and geology, plus environmental, technological, and legislative topics. Major areas of coverage include biological oceanography, ecology, physical and chemical oceanography, marine geology, geophysics, geochemistry, marine pollution, nonliving marine resources, navigation and communications, maritime law, desalination, ships, shipping, marine biology.