The title of this document reflects the development that the Omega-3 market now includes fish oils, fish liver oils, some mammal (seal), crustacean (krill) and molluscan (squid) oils as well as single cell oils from marine and freshwater algae, genetically modified yeast and genetically modified oilseeds. The document will mainly discuss fish body oils but will include information on the production of krill, cod liver oil, and other methods of producing marine oils.