Commercial fishing in ocean, coastal, off-shore and estuary waters, including factory-type fishing vessels and fleets engaged in catching and processing. This consists or catching or taking fish, crustacea and molluscs; seal hunting; gathering of uncultivated sea weeds, sea shells, pearls, oysters, clams, lobsters, crabs, shellfish, sponges, turtles and other ocean and coastal water products. Factory-type vessels engaged in processing fish only, which can be treated as individual establishments, are classified in group 3114 (Processing of fish, crustacea and similar foods).