Editing Common carp (section)

=== North America ===
Common carp were brought to the [[United States]] in 1831.<ref>[http://www.wildlifedepartment.com/asiancarp.htm] {{webarchive|url=https://web.archive.org/web/20101007184712/http://www.wildlifedepartment.com/asiancarp.htm|date=October 7, 2010}}</ref> In the late 19th century, they were distributed widely throughout the country by the government as a [[food fish]], but they are now rarely eaten in the United States, where they are generally considered pests. As in Australia, their introduction has been shown to have negative environmental consequences.<ref>{{Cite web |url=https://nas.er.usgs.gov/queries/factsheet.asp?speciesID=4 |title=USGS Nonindigenous Aquatic Species Program |access-date=2017-08-28 |archive-url=https://web.archive.org/web/20090510183452/http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=4 |archive-date=2009-05-10 |url-status=dead }}</ref>

In [[Utah]], the common carp's population in [[Utah Lake]] is expected to be reduced by 75 percent by using [[fishing net|net]]s to catch millions of them, and either giving them to people who will eat them or processing them into [[fertilizer]]. This, in turn, will give the declining population of the native [[June sucker]] a chance to recover.<ref name="utah-lake-carp-sltrib-20150901">{{cite news|url=http://www.sltrib.com/home/2855320-155/utah-lake-carp-census-gauges-whether|title=Utah Lake carp census gauges whether evictions-by-the-ton are succeeding|date=September 1, 2015|first=Brian|last=Maffly|newspaper=[[The Salt Lake Tribune]]|access-date=May 22, 2017|archive-date=April 29, 2017|archive-url=https://web.archive.org/web/20170429014957/http://www.sltrib.com/home/2855320-155/utah-lake-carp-census-gauges-whether|url-status=dead}}</ref> Another method of control is to trap them with [[seine net]]s in tributaries they use to spawn, and exposing them to the [[piscicide]] [[rotenone]]. This method has been shown to reduce their impact within 24 hours and greatly increase native vegetation and desirable fish species. It also allows native fish to prey more easily on young carp.{{citation needed|date=November 2020}}

Common carp are thought to have been introduced into the Canadian province of [[British Columbia]] from the neighboring [[Washington state]]. They were first noted in the [[Okanagan Valley]] in 1912, as was their rapid growth in population. Carp are currently distributed in the lower [[Columbia River|Columbia]] ([[Arrow Lakes]]), lower [[Kootenay River|Kootenay]], Kettle ([[Christina Lake (British Columbia)|Christina Lake]]), and throughout the [[Okanagan River|Okanagan]] system.<ref>[http://www.livinglandscapes.bc.ca/cbasin/peter_myles/intr_cyprinidae.html#i_cyprinus_carpio Cyprinus carpio (Linnaeus)] {{Webarchive|url=https://web.archive.org/web/20070928031211/http://www.livinglandscapes.bc.ca/cbasin/peter_myles/intr_cyprinidae.html#i_cyprinus_carpio |date=2007-09-28 }} on Living Landscapes, from the [[Royal British Columbia Museum]]</ref>