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Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Doradinae
Etymology: Rhynchodoras: Greek, rhingchos = snout + Greek, doras = skin (Ref. 45335); castilloi: Named for Otto E. Castillo G, who collected much of the type material, for his lifelong dedication to the study and stewardship of his country's rich diversity of freshwater fishes.
Eponymy: Otto E Castillo G is a Venezuelan biologist at the Museum of Zoology, National Experimental University of the Western Llanos Ezequiel Zamora, Venezuela. [...] (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande. Tropical
South America: middle to lower Río Apure of the Orinoco basin in Venezuela.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 8.0 cm SL hane/ej könsbestämd; (Ref. 72419)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 1; Mjukstrålar i ryggfenan (totalt) : 6; Ryggkotor: 41. Differs from Rhynchodoras xingui by having the following characters: all three tympanal scutes weakly developed (vs. second and particularly third well developed, latter with medial carina); midlateral scutes 34-36 (vs. 33 -34); and anterior midlateral scutes relatively shallow,
depth about one-fifth of corresponding body depth, and with dorsal and ventral laminae weakly developed, lacking distinct serrations along posterior margins (vs. depth about one-third to one-quarter of corresponding body depth, and dorsal and ventral laminae well developed with conspicuously serrated posterior margins). Diagnosed from Rhynchodoras woodsi by having a simple swim bladder (vs. each posterior chamber of
gas bladder expanded into elongate horn-like diverticulum), and tubercles punctate and abundant (vs. tubercles elongate, dashlike, and sparse) (Ref. 72419).
Body shape (shape guide): elongated.
Reported to feed on Trichoptera (Ref. 72419).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Birindelli, J.L.O., M.H. Sabaj and D.C. Taphorn, 2007. New species of Rhynchodoras from Río Orinoco, Venezuela, with comments on the genus (Siluriformes: Doradidae). Copeia 2007(3):672-684. (Ref. 72419)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Sårbar (VU) (B1ab(iii)+2ab(iii)); Date assessed: 15 February 2021
Hot mot människor
Harmless
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01230 (0.00592 - 0.02556), b=2.96 (2.78 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
2.9 ±0.4 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (11 of 100). 🛈 |