What is Greenland halibut?
{{Speciesbox | name = Greenland Halibut | image = Reinhardtius hippoglossoides.jpg | status = NT | status_system = IUCN3.1 | status_ref = <ref name = IUCN>{{cite journal | author1 = Munroe, T. | author2 = Costa, M. | author3 = Nielsen, J. | author4 = Herrera, J. | author5 = de Sola, L. | name-list-style = amp | title = ''Reinhardtius hippoglossoides'' | journal = The IUCN Red List of Threatened Species | year = 2015 | page = e.T18227054A45790364 | url = http://www.iucnredlist.org/details/18227054/1 | access-date = 2018-09-12 | archive-date = 2018-09-04 | archive-url = https://web.archive.org/web/20180904172915/http://www.iucnredlist.org/details/18227054/1 | url-status = dead }} Downloaded on 26 March 2018.</ref> | genus = Reinhardtius | parent_authority = [[Theodore Gill|Gill]], 1861 | species = hippoglossoides | authority = ([[Johann Julius Walbaum|Walbaum]], 1792) | synonyms = *''Pleuronectes hippoglossoides'' <small>Walbaum, 1792</small> *''Pleuronectes pinguis'' <small>[[Otto Fabricius|O. Fabricius]], 1824</small> *''Hippoglossus groenlandicus'' <small>[[ALbert Günther|Günther]], 1862</small> *''Reinhardtius matsuurae'' <small>[[David Starr Jordan|Jordan]] & [[John Otterbein Snyder|Snyder]], 1901</small> | synonyms_ref = }} The '''Greenland halibut''' or '''Greenland turbot''' (''Reinhardtius hippoglossoides'') is part of the [[Pleuronectidae]] family and is the [[monotypic|only species]] of the genus '''''Reinhardtius'''''. It is a deep water fish, ranging between about {{convert|200|and|1600|m|ft|-2|abbr=on}}, and is found in the northern [[Atlantic Ocean|Atlantic]] and northern [[Pacific Ocean]]. The Greenland halibut is a flatfish, and the left eye has migrated during the fish's development so that it is on the right side of the head. This fish is used for food and is caught mostly by [[trawling]]. [[Greenpeace]] thinks the [[fishery]] is unsustainable and has added the Greenland halibut to its seafood red list. This designation is widely considered to be based upon limited and unverifiable data.