Pterygoplichthys ambrosettii

Pterygoplichthys ambrosettii is a species of armored catfish distributed in south-central South America.[1]

Pterygoplichthys ambrosettii
Not evaluated (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Subfamily: Hypostominae
Tribe: Pterygoplichthyini
Genus: Pterygoplichthys
Species:
P. ambrosettii
Binomial name
Pterygoplichthys ambrosettii
Holmberg, 1893

Distribution and habitat

This species is distributed in the Río Plata basin, in the Paraguay, Middle Paraná, Bermejo, and Uruguay rivers, in the countries of Paraguay, Bolivia,  the north/northeast of Argentina, and the west of Uruguay.[2] It is a typical species of the Paraná lower freshwater ecoregion.

Invasive tendencies

It was not originally part of the upper Paraná River, but due to flooding of geological barriers (Sete Quedas waterfalls) they were able to expand their territory. This was due to the installation of the Itaipu hydroelectric power plant.[3]

Taxonomy

This species was originally described in the year 1893 by the physician, naturalist and writer Argentine Eduardo Ladislao Holmberg, under the scientific term for Liposarcus ambrosettii using samples caught in the Paraguay River, opposite the city of Formosa.  It is included in the Hypostominae subfamily.[4]

Etymology

Etymologically , the generic name Pterygoplichthys is constructed with three words of the Greek language, where: pterygion is the diminutive of pteryx that means 'fin', hoplon is 'weapon', and ichthys is 'fish'.[5]  The specific term ambrosettii honors the surname of Argentine naturalist Juan Bautista Ambrosetti.

Taxonomic history

Pterygoplichthys anisitsi was described in 1903 by the German-American ichthyologist Carl H. Eigenmann along with Clarence Hamilton Kennedy.[6] These scientists were originally credited more so with its discovery since the description made by Holmberg went unnoticed, so in 1992 C. Webber passed the latter to the category of nomen oblitum.[7]  However, the epithet of P. ambrosettii had been cited as the valid name for this fish by Isaäc Isbrüker in 1980.[8] Other authors began to agree, so in 2007 Carl J. Ferraris Jr. determined that, being the oldest available name, it corresponds to being the senior synonym, becoming P. anisitsi to be its minor synonym. [9]

References
  1. Torres, Armi G. "Pterygoplichthys-ambrosettii". Fishbase. Retrieved 23 October 2019.
  2. Ferraris, C. J. Jr. (2007). Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
  3. Garcia, D. A. Z.; Almeida, F. S.; Silva e Souza, Â. T.; Britton, J. R.; Orsi, M. L. (October 2014). "Invasion characteristics of Pterygoplichthys ambrosettii (Holmberg, 1893) in the lower Paranapanema River, Brazil". Journal of Applied Ichthyology. 30 (5): 1041–1044. doi:10.1111/jai.12468.
  4. Holmberg, E. L. (1893). Dos peces argentinos: Stenoterommata nov. gen. inexpectata Holmb. y Liposarcus ambrosettii Holmb. Revista del Jardín Zoológico, Tomo I, entr. XII: 353-354.
  5. Romero, P. (2002). An etymological dictionary of taxonomy. Madrid.
  6. Eigenmann, C. H., and Kennedy, C. H. (1903). On a collection of fishes from Paraguay, with a synopsis of the American genera of cichlids. Proceedings of the Academy of Natural Sciences of Philadelphia, 497-537.
  7. Weber, C. (1992). Revision du genre Pterygoplichthys sensu lato (Pisces, Siluriformes, Loricariidae). Revue fr. Aquariol., 19(1), 1-36.
  8. Isbrüker, I. (1980). Classification and Catalogue of the mailed Loricariidae (Pisces, Siluriformes). Vers.Techn. Geg. Inst. Tax. Zool. (Zool. Mus.), Univ. Amsterdam 22:1-181.
  9. Ferraris, C. J. (2007). Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418. Magnolia Press, Auckland, New Zealand.
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