The harvest of animals and plants from the ocean to provide food and recreation for people, food for animals, and a variety of organic materials for industry. Important products in marine capture fisheries include fish; mollusks such as oysters, clams, and squid; and crustaceans such as crabs and shrimps. Marine mammals (whales) and reptiles (turtles) have been important historically in marine landings (the weight of the catch landed at the wharf); and some plants, mostly seaweeds, are harvested in significant amounts. World landings began to increase substantially during the industrial revolution and rose at a rapid rate after World War II before leveling off in recent years.