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Sturgeons And Paddlefishes

Acipenseriformes

Behavior

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Perception Channels: tactile ; chemical

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Dewey, T. . "Acipenseriformes" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Acipenseriformes.html
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Morphology

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Other Physical Features: bilateral symmetry

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Dewey, T. . "Acipenseriformes" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Acipenseriformes.html
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Tanya Dewey, Animal Diversity Web
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Acipenseriformes

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Fossil of the chondrosteid Strongylosteus hindenburgi, Tübingen
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The living polyodontid Polyodon spathula (American paddlefish)
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The living acipenserid Acipenser ruthenus (sterlet)
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The living acipenserid Pseudoscaphirhynchus kaufmanni (false shovelnose sturgeon)

Acipenseriformes /æsɪˈpɛnsərɪfɔːrmz/ is an order of basal[1] ray-finned fishes that includes living and fossil sturgeons and paddlefishes (Acipenseroidei), as well as the extinct families Chondrosteidae and Peipiaosteidae, and the more basal Eochondrosteus.[2][3][4]

Characteristics

Notable characteristics of Acipenseriformes include:

Systematics

The classification is based on the work of Mikko Haaramo,[5] Neslon, Grande and Wilson 2016[6] and van der Laan 2016.[7]

Conservation

Most living species of Acipenseriformes are classified as threatened (mostly endangered or critically endangered) by the International Union for Conservation of Nature.

The Chinese paddlefish was last seen alive in 2003, and was considered to have gone extinct sometime between 2005 and 2010 by the Yangtze River Fisheries Research Institute in their 2019 report.

Hybridization

A study published in 2020 reported a successful hybridization between a Russian sturgeon (Acipenser gueldenstaedtii) and an American paddlefish (Polyodon spathula), indicating that the two species can breed with one another despite their lineages having been separated for hundreds of millions of years. This has marked the first successful hybridization between members of Acipenseridae and Polyodontidae.[9]

References

  1. ^ Venkatesh, B. (December 2003). "Evolution and diversity of fish genomes". Current Opinion in Genetics & Development. 13 (6): 588–592. doi:10.1016/j.gde.2003.09.001. PMID 14638319.
  2. ^ Froese, Rainer, and Daniel Pauly, eds. (2006). "Acipenseriformes" in FishBase. 05 2006 version.
  3. ^ Bemis, William E.; Findeis, Eric K.; Grande, Lance (1997). "An overview of Acipenseriformes". Environmental Biology of Fishes. 48 (1–4): 25–71. doi:10.1023/A:1007370213924. S2CID 24961905.
  4. ^ a b Lu, Liwu; Tan, Kai; Wang, Xi (2020). "Redescription of Eochondrosteus sinensis (Acipenseriformes, Actinopterygii) and its geological age". Earth Science Frontiers. 27 (6): 371–381.
  5. ^ Haaramo, Mikko (2007). "Acipenseriformes – sturgeons and paddlefishes". Mikko's Phylogeny Archive. Retrieved 30 December 2016.
  6. ^ Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016). Fishes of the World (5th ed.). John Wiley & Sons. ISBN 9781118342336.
  7. ^ van der Laan, Richard (2016). "Family-group names of fossil fishes". {{cite journal}}: Cite journal requires |journal= (help)
  8. ^ Qiwei, W. "Psephurus gladius". IUCN Red List of Threatened Species. 2010. Retrieved 3 January 2020.
  9. ^ Káldy, Jenő; Mozsár, Attila; Fazekas, Gyöngyvér; Farkas, Móni; Fazekas, Dorottya Lilla; Fazekas, Georgina Lea; Goda, Katalin; Gyöngy, Zsuzsanna; Kovács, Balázs; Semmens, Kenneth; Bercsényi, Miklós (July 2020). "Hybridization of Russian Sturgeon (Acipenser gueldenstaedtii, Brandt and Ratzeberg, 1833) and American Paddlefish (Polyodon spathula, Walbaum 1792) and Evaluation of Their Progeny". Genes. 11 (7): 753. doi:10.3390/genes11070753. PMC 7397225. PMID 32640744.

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Acipenseriformes: Brief Summary

provided by wikipedia EN
 src= Fossil of the †chondrosteidStrongylosteus hindenburgi, Tübingen  src= Fossil of the †peipiaosteidYanosteus longidorsalis, MHNT  src= The living polyodontid Polyodon spathula (American paddlefish)  src= The living acipenserid Acipenser ruthenus (sterlet)  src= The living acipenserid Pseudoscaphirhynchus kaufmanni (false shovelnose sturgeon)

Acipenseriformes /æsɪˈpɛnsərɪfɔːrmiːz/ is an order of basal ray-finned fishes that includes living and fossil sturgeons and paddlefishes (Acipenseroidei), as well as the extinct families Chondrosteidae and Peipiaosteidae, and the more basal Eochondrosteus.

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