Japan ranked second in the world behind the People's Republic of China in tonnage of fish caught?11.9 million tons in 1989, up slightly from 11.1 million tons in 1980. After the 1973 energy crisis, deep-sea fishing in Japan declined, with the annual catch in the 1980s averaging 2 million tons. Offshore fisheries accounted for an average of 50 % of the nation's total fish catches in the late 1980s although they experienced repeated ups and downs during that period

Coastal fishing by small boats, set nets, or breeding techniques accounts for about one third of the industry's total production, while offshore fishing by medium-sized boats makes up for more than half the total production. Deep-sea fishing from larger vessels makes up the rest. Among the many species of seafood caught are sardines, skipjack tuna, crab, shrimp, salmon, pollock, squid, clams, mackerel, sea bream, saury, tuna and Japanese amberjack. Freshwater fishing takes up about 30% of Japan's fishing industry. Among the species of fish caught in the rivers of Japan are many different types and some freshwater crustaceans.

Japan maintains one of the world's largest fishing fleets and accounts for nearly 15% of the global catch, prompting some claims that Japan's fishing is leading to depletion in fish stocks such as tuna. Japan has also sparked controversy by supporting quasi-commercial whaling.?