Editing Fishing (section)

===Commercial fishing===
{{main|Commercial fishing}}
[[File:French Fishing Vessel 'Alf' in the Irish Sea MOD 45155246.jpg|thumb|{{center|Fishing boat in heavy sea}}]]
[[File:Push-up fälla - Ystad-2021.jpg|thumb| Push-up trap developed by [[Swedish University of Agricultural Sciences]] for more accurate and less harmful fishing]]
Commercial fishing is the capture of fish for commercial purposes. Those who practice it must often pursue fish far from the land under adverse conditions. Commercial fishermen harvest a wide range of aquatic species, from [[tuna]], [[cod]] and [[salmon]] to [[shrimp]], [[krill]], [[lobster]], [[clam]]s, [[squid]] and [[crab]], in various [[fishery|fisheries]] for these species. Commercial fishing methods have become very efficient using large nets and sea-going processing factories. [[Individual fishing quota]]s and international treaties seek to control the species and quantities caught.

A commercial fishing enterprise may vary from one person with a small boat with hand-casting nets or a few pot traps, to a huge fleet of [[Fishing trawler|trawlers]] processing tons of fish every day.

Commercial fishing gear includes weights, [[Fishing net|nets]] (e.g. purse [[Seine fishing|seine]]), seine nets (e.g. beach seine), [[trawl]]s (e.g. [[Bottom trawling|bottom trawl]]), dredges, [[Fish hook|hooks]] and line (e.g. [[Long-line fishing|long line]] and [[Hand-line fishing|handline]]), lift nets, [[gillnet]]s, entangling nets and [[Fishing trap|traps]].

According to the [[Food and Agriculture Organization]] of the United Nations, the total world [[Wild fisheries|capture fisheries]] production in 2000 was 86 million tons (FAO 2002). The top producing countries were, in order, the People's Republic of China (excluding Hong Kong and Taiwan), Peru, Japan, the United States, Chile, Indonesia, Russia, India, Thailand, Norway, and Iceland. Those countries accounted for more than half of the world's production; China alone accounted for a third of the world's production. Of that production, over 90% was marine and less than 10% was inland.

A small number of species support the majority of the world's fisheries. Some of these species are [[herring]], [[cod]], [[sardine]],  [[anchovy]], [[tuna]], [[flounder]], [[Mullet (fish)|mullet]], [[squid]], [[shrimp]], [[salmon]], crab, [[lobster]], [[oyster]] and [[scallop]]s. All except these last four provided a worldwide catch of well over a [[million]] [[tonne]]s in 1999, with [[herring]] and [[sardine]]s together providing a catch of over 22 million metric tons in 1999. Many other species as well are fished in smaller numbers.