| 词条 | Symphysodon tarzoo |
| 释义 |
| name = Green discus | image = Green Nanay.JPG | image2 = Green Japura.JPG | image2_caption = Individuals from Nanay (above) and Japurá Rivers (below) | status = | status_system = | status_ref = | taxon = Symphysodon tarzoo | authority = Lyons, 1959 | synonyms = }}Symphysodon tarzoo, the green discus, is a species of cichlid native to rivers of the western Amazon Basin upriver from the Purus arch, although it occasionally occurs downstream.[1][2] An introduced population in the Nanay River is based on stock from the Tefé region.[3] The green discus is found in blackwater habitats with a high temperature of {{convert|27|-|30|C|F|abbr=on}} and low pH of 4.8–5.9.[3] Although also known from whitewater, its preference for lentic habitats such as floodplains means that the water contain little suspended material (unlike main sections of whitewater rivers).[2][4] This species grows to a length of {{convert|13.2|cm|in}} SL.[1][5] S. tarzoo has red spots on the anal fin and body, which separates it from other discus species.[6] The scientific name was coined by Earl Lyons in 1959, and the species was revalidated by pattern, morphology and mtDNA in 2006.[1][6] Later studies have confirmed its distinction, although some suggest the correct scientific name for the green discus is S. aequifasciatus (a name typically used for the blue/brown discus).[2][3] No natural (wild) hybrids are known between the green discus and its relatives.[1][3] References1. ^1 2 3 {{cite journal|last1=Ready|first1=J.S.|last2=Ferreira|first2=E.J.G.|last3=Kullander|first3=S.O.|title=Discus fishes: mitochondrial DNA evidence for a phylogeographic barrier in the Amazonian genus Symphysodon (Teleostei: Cichlidae)|year=2006|journal=Fish Biology|volume=69|pages=200–211|doi=10.1111/j.1095-8649.2006.01232.x}} {{commons category|Symphysodon tarzoo}}{{Taxonbar|from=Q5513750}}{{Cichlidae-stub}}2. ^1 2 {{cite journal|last1=Amado|first1=M.V.|last2=Farias|first2=I.P.|last3=Hrbek|first3=T.|title=A Molecular Perspective on Systematics, Taxonomy and Classification Amazonian Discus Fishes of the Genus Symphysodon|journal=International Journal of Evolutionary Biology|date=2011|pages=1–16|doi=10.4061/2011/360654}} 3. ^1 2 3 {{cite journal|last1=Bleher|first1=H.|last2=Stölting|first2=K.N.|last3=Salzburger|first3=W.|last4=Meyer|first4=A.|title=Revision of the genus Symphysodon Heckel, 1840 (Teleostei: Perciformes: Cichlidae) based on molecular and morphological characters|year=2007|journal=Aqua|volume=12|pages=133–174}} 4. ^{{cite journal | last1 = Crampton | first1 = | year = 2008 | title = Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae) | url = | journal = Neotrop. Ichthyol. | volume = 6 | issue = 4| pages = 599–612 | doi = 10.1590/S1679-62252008000400008 }} 5. ^{{FishBase |genus= Symphysodon|species= tarzoo| month = January | year = 2017}} 6. ^1 {{cite web|title=New Discus named Symphysodon tarzoo |url=http://www.practicalfishkeeping.co.uk/pfk/pages/item.php?news=1145 |date=2006-11-28 |work=Matt Clarke |publisher=practical fishkeeping |accessdate=15 August 2009 |deadurl=yes |archiveurl=https://web.archive.org/web/20090307162702/http://www.practicalfishkeeping.co.uk/pfk/pages/item.php?news=1145 |archivedate=March 7, 2009 }} 2 : Symphysodon|Fish described in 1959 |
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