Pterygoplichthys anisitsi
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Genus: Pterygoplichthys
Species:
P. anisitsi
Binomial name
Pterygoplichthys anisitsi
Eigenmann & Kennedy, 1903
Synonyms[1]
  • Ancistrus anisitsi (Eigenmann & Kennedy, 1903)
  • Liposarcus anisitsi (Eigenmann & Kennedy, 1903)

Pterygoplichthys anisitsi[1][2] also known as the Paraná sailfin catfish, southern sailfin catfish, is a species of catfish in the family Loricariidae.[3] Its natural range is the middle Paraná and Uruguay River basins of south-central South America,[4] but it has been introduced to North America and South Asia, probably via the pet trade.[5][6] Like other loricariid catfishes, Pterygoplichthys anisitsi has a ventral mouth modified into a sucking disk and a body covered in bony plates.[4] The species typically has a dark and white spotted body pattern, although some individuals are very dark with few spots.[5] It reaches 55 cm (21.7 inches) in total length and can weigh up to at least 2.3 kg.[7]

Gas exchange and respiration

Pterygoplichthys anisitsi is capable of breathing both air and water. During nighttime or when the fish experiences a low-oxygen environment, it will swim to the surface to gulp in air.[8] When breathing air, the species uses its stomach for the diffusion of oxygen into the blood.[9]

References

  1. 1 2 "Pterygoplichthys anisitsi". Global Biodiversity Information Facility. Retrieved 11 September 2021.
  2. ↑ "Pterygoplichthys anisitsi". National Center for Biotechnology Information (NCBI). Retrieved 11 September 2021.
  3. ↑ Nico, Fuller, Cannister, Neilson (4 September 2013). "Paraná Sailfin Catfish (Pterygoplichthys anisitsi)". U.S. Geological Survey, Nonindigenous Aquatic Species Database. Retrieved 10 September 2021.{{cite web}}: CS1 maint: multiple names: authors list (link)
  4. 1 2 WEBER, C (1992). "Révision du genre Pterygoplichthys sensu lato (Pisces, Siluriformes, Loricariidae)". Révision du genre Pterygoplichthys sensu lato (Pisces, Siluriformes, Loricariidae). 19 (1–2): 1–36. ISSN 0399-1075.
  5. 1 2 Nico, Leo G.; Martin, R. Trent (March 2001). "The South American Suckermouth Armored Catfish, Pterygoplichthys anisitsi (Pisces: Loricaridae), in Texas, with Comments on Foreign Fish Introductions in the American Southwest". The Southwestern Naturalist. 46 (1): 98. doi:10.2307/3672381. JSTOR 3672381.
  6. ↑ Orfinger, Alexander Benjamin; Douglas Goodding, Daniel (2018). "The Global Invasion of the Suckermouth Armored Catfish Genus Pterygoplichthys (Siluriformes: Loricariidae): Annotated List of Species, Distributional Summary, and Assessment of Impacts". Zoological Studies. 57 (57): e7. doi:10.6620/ZS.2018.57-07. ISSN 1810-522X. PMC 6517723. PMID 31966247.
  7. ↑ Froese, Rainer; Pauly, Daniel, eds. (2022). "Pterygoplichthys anisitsi". FishBase.
  8. ↑ da Cruz, André Luis; da Silva, Hugo Ribeiro; Lundstedt, Lícia Maria; Schwantes, Arno Rudi; Moraes, Gilberto; Klein, Wilfried; Fernandes, Marisa Narciso (2012-07-24). "Air-breathing behavior and physiological responses to hypoxia and air exposure in the air-breathing loricariid fish, Pterygoplichthys anisitsi". Fish Physiology and Biochemistry. 39 (2): 243–256. doi:10.1007/s10695-012-9695-0. ISSN 0920-1742. PMID 22825808. S2CID 254504653.
  9. ↑ da Cruz, André Luis; Fernandes, Marisa Narciso (December 2016). "What is the most efficient respiratory organ for the loricariid air-breathing fish Pterygoplichthys anisitsi, gills or stomach? A quantitative morphological study". Zoology. 119 (6): 526–533. doi:10.1016/j.zool.2016.08.003. ISSN 0944-2006. PMID 27618705.


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