Editing Murray cod (section)

==Related species==
[[Image:Sizeable Murray cod.JPG|thumb|Murray cod push significant distances into [[upland (freshwater ecology)|upland]] river habitats.]]
Murray cod continue a pattern present in Murray-Darling native fish genera of speciation into [[Lowland (freshwater ecology)|lowland]] and specialist [[upland (freshwater ecology)|upland]] species: Murray cod are the primarily lowland species and the endangered [[trout cod]] are the specialist upland species. The pattern is slightly blurred in the cod species because, being adaptable and successful fish, Murray cod push significant distances into upland habitats, while the now endangered [[trout cod]] stray (or did stray, before their decline) well down the upland/lowland transition zone, which can be extensive in Murray-Darling Rivers. Nevertheless, the basic pattern of [[speciation]] into a primarily lowland species and a specialist upland species is present.<ref name=trueman2007/>

Murray cod, like a number of other Murray-Darling native fish species, have also managed to cross the [[Great Dividing Range]] at least once through natural [[river capture]] events, leading to several species and subspecies of coastal cod. The best known are [[eastern freshwater cod]] of the [[Clarence River (New South Wales)|Clarence River]] system in northern [[New South Wales]], and Mary River cod of the [[Mary River (Queensland)|Mary River]] system in south eastern [[Queensland]], both of which are endangered, but survive today. Coastal cod were also found in the [[Richmond River]] system in northern New South Wales and the [[Brisbane River]] system in southern Queensland, but are now extinct.<ref name=nfacod/><ref name=nswdf79r>
{{Cite journal
 |title=Profiles for species, populations & ecological communities: Eastern freshwater cod
 |journal=Priority Action Statement
 |publisher=NSW Fisheries
 |url=http://pas.dpi.nsw.gov.au/Species/Species_Profile.aspx?SpeciesListingID=3
 |access-date=2008-07-01
 |url-status=dead
 |archive-url=https://web.archive.org/web/20080723235215/http://pas.dpi.nsw.gov.au/Species/Species_Profile.aspx?SpeciesListingID=3
 |archive-date=2008-07-23
}}
</ref>