Symphysodon aequifasciatus: Difference between revisions
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==Taxonomy== |
==Taxonomy== |
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The [[Taxonomy (biology)|taxonomy]] is disputed, but [[FishBase]] follows a review of the genus from 2006.<ref name=Ready2006/><ref>{{FishBase genus | genus = Symphysodon| month = January | year = 2017}}</ref> |
The [[Taxonomy (biology)|taxonomy]] is disputed, but [[FishBase]] follows a review of the genus from 2006.<ref name=Ready2006/><ref>{{FishBase genus | genus = Symphysodon| month = January | year = 2017}}</ref> |
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In 2007 it was suggested that the correct scientific name of the blue/brown discus is ''S. haraldi'', whereas ''S. aequifasciatus'' is the correct name for the [[green discus]].<ref name=Bleher2007/> |
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In 2011 a study indicated that it should be split into three: Brown discus (''S. aequifasciatus''; East Amazon downriver from [[Meeting of Waters]]), blue discus (''S.'' sp. 1; central Amazon from Purus arch to the Meeting of Waters) and the Xingu group (''S.'' sp. 2; [[Xingu River|Xingu]] and [[Tocantins River|Tocantins]]).<ref name=Amado2011>{{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|accessdate=14 December 2016}}</ref> The Xingu group currently [[Undescribed taxon|lacks a scientific name]], but it is possible that the correct name for the blue is ''S. haraldi''.<ref name=Amado2011/> Some [[Hybrid (biology)|hybridization]] occurs (or has occurred) between the species recognized in the 2011 study and also between the brown and [[Heckel discus]] (''S. discus''), but overall they maintain their separate evolutionary trajectories.<ref name=Amado2011/> |
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==References== |
==References== |
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Revision as of 00:13, 26 January 2017
| Symphysodon aequifasciatus | |
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| Scientific classification | |
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| Species: | S. aequifasciatus
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| Binomial name | |
| Symphysodon aequifasciatus Pellegrin, 1904
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Symphysodon aequifasciatus, the blue discus or brown discus, is a species of cichlid native to rivers of the eastern and central Amazon Basin downriver from the Purus arch.[1] This discus is largely restricted to clear- and black-water habitats with a high temperature of 25–32 °C (77–90 °F) and a pH of 5.2–7.7.[2] It reaches a length of up to 13.7 centimetres (5.4 in) SL and is commonly kept in aquariums.[3]
Taxonomy
The taxonomy is disputed, but FishBase follows a review of the genus from 2006.[1][4]
In 2007 it was suggested that the correct scientific name of the blue/brown discus is S. haraldi, whereas S. aequifasciatus is the correct name for the green discus.[2]
In 2011 a study indicated that it should be split into three: Brown discus (S. aequifasciatus; East Amazon downriver from Meeting of Waters), blue discus (S. sp. 1; central Amazon from Purus arch to the Meeting of Waters) and the Xingu group (S. sp. 2; Xingu and Tocantins).[5] The Xingu group currently lacks a scientific name, but it is possible that the correct name for the blue is S. haraldi.[5] Some hybridization occurs (or has occurred) between the species recognized in the 2011 study and also between the brown and Heckel discus (S. discus), but overall they maintain their separate evolutionary trajectories.[5]
References
- ^ a b Ready, J.S.; Ferreira, E.J.G.; Kullander, S.O. (2006). "Discus fishes: mitochondrial DNA evidence for a phylogeographic barrier in the Amazonian genus Symphysodon (Teleostei: Cichlidae)". Fish Biology. 69: 200–211. doi:10.1111/j.1095-8649.2006.01232.x.
- ^ a b Bleher, H.; Stölting, K.N.; Salzburger, W.; Meyer, A. (2007). "Revision of the genus Symphysodon Heckel, 1840 (Teleostei: Perciformes: Cichlidae) based on molecular and morphological characters". Aqua. 12: 133–174.
- ^ Froese, Rainer; Pauly, Daniel (eds.). "Symphysodon aequifasciatus". FishBase. January 2017 version.
- ^ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Symphysodon". FishBase. January 2017 version.
- ^ a b c Amado, M.V.; Farias, I.P.; Hrbek, T. (2011). "A Molecular Perspective on Systematics, Taxonomy and Classification Amazonian Discus Fishes of the Genus Symphysodon". International Journal Of Evolutionary Biology: 1–16. doi:10.4061/2011/360654.
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