Editing Arctic grayling (section)

==Range==
[[File:NativeandIntroducedRangeThymallusarcticus-USGS.JPG|thumb|alt=U.S. map of grayling range|Native and introduced range of Arctic grayling, ''Thymallus arcticus'' in U.S.<ref>{{cite web |url=https://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=943 |title=Nonindigenous Aquatic Species Arctic Grayling |publisher=U.S. Geological Survey |access-date=2014-02-27}}</ref>]]
Arctic grayling are widespread in Arctic Ocean drainages from [[Hudson Bay]], Canada to [[Alaska]] and in Arctic and Pacific drainages to central [[Alberta]] and [[British Columbia]] in Canada.  They do not occur naturally in the [[Fraser River|Fraser]] and [[Columbia River|Columbia river basins]].<ref>{{cite book |title= About Trout: The Best of Robert J. Behnke from ''Trout Magazine'' |pages=157–162 |publisher=Globe Pequot |author-link=Robert J. Behnke|year=2007 |isbn=978-1-59921-203-6 |chapter=Grayling-Summer 1992 |last=Behnke|first=Robert J.|author2=Williams, Ted}}</ref>  There are remnant native populations of fluvial Arctic grayling in the upper [[Missouri River]] drainage in the [[Big Hole River]] and [[Red Rock River (Montana)|Red Rock basin]] ("[[Montana Arctic grayling]]"). Fluvial Arctic grayling have been reestablished in the upper [[Ruby River]], a tributary of the [[Beaverhead River]].  The native range formerly extended south into the [[Great Lakes]] basin in [[Michigan]], where the species was extirpated by 1936 due to habitat destruction, unregulated logging, and competition from non-native fish species.

The arctic grayling occurs naturally in the Arctic Ocean basin in Siberia from the [[Ob River|Ob]] to [[Yenisei River|Yenisei]] drainages and in [[European Russia]] in some tributaries of [[Pechora River|Pechora river]].<ref>{{ITIS |id= 162016 |taxon=Thymallus arcticus |access-date=2014-02-27 }}</ref>  Lake dwelling forms of Arctic grayling have been introduced in suitable lake habitats throughout the [[Rocky Mountains]] including lakes in the [[Teton Range]] in Wyoming, [[central Idaho]] and the high [[Uinta Mountains]] in Utah,<ref>[https://books.google.com/books?id=1SB7OB1ob5cC&dq=arctic+grayling+toppings+lake&pg=PA11 Fishing Wyoming] ''Kenneth Lee Graham''</ref><ref name="t-arcticus-utah">{{cite web|url=https://dwrcdc.nr.utah.gov/rsgis2/search/Display.asp?FlNm=thymarct |title=Thymallus arcticus |publisher=Utah Division of Wildlife Resources |access-date=May 21, 2017 |archive-date=November 28, 2016 |archive-url=https://web.archive.org/web/20161128234345/http://dwrcdc.nr.utah.gov/rsgis2/Search/Display.asp?FlNm=thymarct |url-status=dead }}</ref> [[Cascade Mountains]] and [[Sierra Nevada (U.S.)|Sierra Nevada Mountains]] as far south as [[Arizona]].