Editing Sonora (section)

===Fishing===
Sonora is a major producer of seafood in Mexico with a developed fishing infrastructure.<ref name="actecon"/> The Gulf of California contains a large quantity of fish and shellfish, but major fishing did not begin in Sonora and neighboring [[Sinaloa]] until the mid 20th century. Today, some of Mexico's largest commercial fisheries are in the state.<ref name="cartron67">Cartron, p. 67</ref> Sonora is one of Mexico's leading fish producing states, with 70% of Mexico's total coming from the Pacific coast, including the Gulf of California.<ref name="walden21">{{cite book |title= Mexico Business Intelligence Report (2005/February) |author= Walden Publishing Ltd |year=2005 |publisher= World of Information |location= Cambridge, England |page=21}}</ref>

Much of the catch is shrimp and [[sardines]], with about three quarters exported to the United States.<ref name="actecon"/><ref name="cartron67"/> In 2002, the catch totaled 456,805 tons of seafood with a value of about 2,031 million pesos. In addition to what is caught at sea, there is active fish farming which raises mostly oysters and shrimp.<ref name="actecon"/> Much of the commercial and sports fishing is essentially unregulated and has had a very pronounced impact on the Gulf of California, with commercially important species such as shrimp, [[grouper]]s, [[Lutjanidae|snappers]], [[corvine (fish)|corvinas]], [[California yellowtail|yellowtail]], [[billfish]]es have been harvested well above sustainability. Two species that have been particularly hard hit are sharks and [[manta ray]]s. In addition, shrimp trawling catches a large amount of non-target species, which are discarded, and have destroyed large areas of the Gulf's seafloor. All this has led to rapidly declining harvests.<ref name="cartron67"/>