Fisheries commodities cover products derived from any aquatic animal (fish, crustaceans, molluscs) as well as residues for commercial, industrial or subsistence uses; fished in inland, fresh and brackish waters, in inshore, offshore or high seas fishing areas. Various classification systems are available for fisheries commodities: FAO's International Standard Statistical Classification of Fishery Commodities (ISSCFC) which is an expansion of the United Nations Standard International Trade Classification (SITC); and the Harmonized Commodity Description and Coding System maintained by theWorld Customs Organization (WCO). The fisheries commodities ontology manages all information necessary to use these classifications together.