Classificação / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Hypostomus: Greek, hypo = under + Greek, stoma = mouth (Ref. 45335); yaku: The specific name is from the Tupi Guarani language, dialect Mbyá, y means water, and raku means hot, warm, in reference to the name of the rio Quente, a warm water river. A noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Tropical; 34°C - ? (Ref. 97842)
South America: Rio Quente, rio Paranaíba drainage, in the upper rio Paraná basin in
central Brazil.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 7.1 cm SL macho/indeterminado; (Ref. 97842)
Descrição suscinta
Morfologia | Morfometria
Raios anais : 5; Vértebras: 27 - 28. Hypostomus yaku can be diagnosed from all congeners by having the five lateral series of plates with hypertrophied odontodes, not aligned in longitudinal rows, more conspicuous on flanks of caudal peduncle of the larger specimens (vs. lateral series of plates without hypertrophied odontodes or with aligned hypertrophied odontodes only along the longitudinal keels) (Ref. 97842).
Facultative air-breathing in the genus (Ref. 126274); The type locality, Rio Quente, has a width of about 3 m and depth of 1.0-1.5 m, moderate flow and bottom with sand, pebbles and rocks. Associated mainly with rocks. Seems to be restricted to warm waters. Collected together with Characidium xanthopterum, Characidium aff. zebra, Knodus moenkhausii, an undescribed species of a putatively new genus of the Characidae, and the exotic Xiphophorus helleri and Oreochromis niloticus (Ref. 97842).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Martins, F.O., F. Langeani and C.H. Zawadzki, 2014. A new spiny species of Hypostomus Lacépède (Loricariidae: Hypostominae) from thermal waters, upper rio Paraná basin, central Brazil. Neotrop. Ichthyol. (Ref. 97842)
Status na Lista Vermelha da UICN (Ref. 130435)
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