This class includes:
——fish farming in freshwater including farming of freshwater ornamental fish
——culture of freshwater crustaceans, bivalves, other molluscs and other aquatic animals
——operation of fish hatcheries (freshwater)
——farming of frogs

This class excludes:
——aquaculture activities in salt water filled tanks and reservoirs, see 0321
——operation of sport fishing preserves, see 9319