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    • Cephalopods are an excellent protein source and a popular food around the world, especially in Asia. During 1999-2015, the world catch of cephalopods increased from 3.4 to 4.7 million tons. Most of the catch is composed of squids (3.5 million tons in 2015).


    • Food and Agriculture Organization of the United Nations, 2016 檔案 PDF
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    • The largest squid fishery is Japan is for Japanese flying squid (Todarodes pacificus). In 2015, octopus landings were 400,000 tons. The most important species in Hokkaido is the giant Pacific octopus (Enteroctopus dofleini).


    • Rigby, 2004, Doctor Dissertation 網址