Eremophilus

Eremophilus mutisii is a species of catfish (order Siluriformes) of the family Trichomycteridae, and the only member of its genus.[3] This fish grows to about 30 centimetres (12 in) and originates from the Bogotá River basin, which is a tributary of the Magdalena River. It has probably been introduced to Ubaté, Chiquinquirá, and Tundama valleys, Colombia.[4][5]

Eremophilus
Eremophilus mutisii, original illustration by Humboldt
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Trichomycteridae
Subfamily: Trichomycterinae
Genus: Eremophilus
Humboldt, 1805
Species:
E. mutisii
Binomial name
Eremophilus mutisii
Humboldt, 1805
Synonyms

Of Eremophilus
Thrichomycterus Humboldt, 1805
Trachypoma Giebel, 1871
Of E. mutisii
Trachypoma marmoratum Giebel, 1871
Trichomycterus venulosus Steindachner, 1915 [2]

E. mutisii uses the vascularized central portion of its stomach for aerial respiration. Air ventilation takes place during a rapid dash to the surface with the expiration of old air preceding inspiration. Air-breathing occurs in hypoxic and normoxic water, but is not obligatory. The evolution of a reduced swimbladder is associated with a benthic mode of life in E. mutisii.[6][7]

This fish species is an excellent food fish. It is the only species of food fish which has been able to survive competition from introduced trout and carp species into the region.[4]

References
  1. Mesa-Salazar, L.; Alonso, J. C.; Mojica, J. (2016). "Eremophilus mutisii". IUCN Red List of Threatened Species. 2016: e.T7999A61472460. doi:10.2305/IUCN.UK.2016-1.RLTS.T7999A61472460.en. Retrieved 12 November 2021.
  2. DoNascimiento, C.; Saúl Prada-Pedreros, S.; Guerrero-Kommritz, J. (2014). "Trichomycterus venulosus (Steindachner, 1915), a junior synonym of Eremophilus mutisii Humboldt, 1805 (Siluriformes: Trichomycteridae) and not an extinct species". Neotropical Ichthyology. 12 (4): 707–715. doi:10.1590/1982-0224-20130236.
  3. Ferraris, C.J.Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa. 1418: 1–628. doi:10.11646/zootaxa.1418.1.1.
  4. Froese, Rainer; Pauly, Daniel (eds.) (2015). "Eremophilus mutisii" in FishBase. February 2015 version.
  5. Pinilla, G.; Abril, M.; González, E. (2006). "Growth, feeding and reproduction of the catfish Eremophilus mutisii". Revista de Biología Tropical. 54 (2): 589–597. doi:10.15517/rbt.v54i2.13925. PMID 18494325.
  6. Cala, P. (1987). "Aerial respiration in the catfish, Eremophilus mutisii (Trichomycteridae, Siluriformes), in the Rio Bogota Basin, Colombia". Journal of Fish Biology. 31 (3): 301–303. doi:10.1111/j.1095-8649.1987.tb05236.x.
  7. Cala, P.; del Castillo, B. & Garzon, B. (1990). "Air-breathing behaviour of the Colombian catfish Eremophilus mutisii (Trichomycteridae, Siluriformes)". Experimental Biology. 48 (6): 357–60. PMID 2365029.


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