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Baryancistrus chrysolomus Rapp, Py-Daniel, Zuanon, Ribeiro, de & Oliveira, 2011

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Baryancistrus chrysolomus
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Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > Siluriformes (Catfish) > Loricariidae (Armored catfishes) > Ancistrinae
Etymology: Baryancistrus: Greek, barys = heavy + Greek, agkistron = hook (Ref. 45335);  chrysolomus: Derived from the Greek 'chryso', meaning orange or yellow and 'loma', meaning border, in allusion to the colored band at the border of the dorsal and caudal fins. A noun in apposition.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoetwater demersaal.   Tropical

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

South America: Rio Xingu drainage in Brazil.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 29.6 cm TL mannelijk/geslacht niet bekend; (Ref. 111518); Maximaal gepubliceerd gewicht: 410.00 g (Ref. 111518)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 2; Dorsale zachte stralen (totaal): 7; Anale zachte stralen: 5. Distinguished from its congeners by having a broad orange to yellow band along the entire distal border of dorsal and caudal fins. Can be diagnosed from other species of Baryancistrus by the combination of the following characters: absence of clear dots on the body; naked abdomen; mandibullary teeth around 70; and dark body with very faint, almost indistinguishable light marks. Both young of Baryancistrus xanthellus and Baryancistrus chrysolomus possess wide light bands on dorsal and caudal fins, but these bands are only retained in adults of Baryancistrus chrysolomus. Both species differ in body coloration, Baryancistrus xanthellus is spotted while Baryancistrus chrysolomus is almost plain (Ref. 87296).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Adults occur under large flat rocks settled directly on the river bottom, in places with considerable amounts of fine sediments. Young individuals inhabit marginal areas of the rapids, near the river banks, usually just one or two individuals. They occupy under rocks in places with slow to moderate flowing waters, usually with sediment accumulation over the rocks and river bottom. Based on two specimens, this species feeds mainly on diatoms and occasionally on invertebrate larvae associated with fine sediments and sand grains (Ref. 87296).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Voornaamste referentie Upload your references | Referenties | Coördinator : Fisch-Muller, Sonia | Medewerkers

Rapp Py-Daniel, L., J. Zuanon and R. Ribeiro de Oliveira, 2011. Two new ornamental loricariid catfishes of Baryancistrus from rio Xingu drainage (Siluriformes: Hypostominae). Neotrop. Ichthyol. 9(2):241-252. (Ref. 87296)

Status op de Rode Lijst van het IUCN (Ref. 120744)


CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00623 - 0.01760), b=3.12 (2.97 - 3.27), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Weerstandsvermogen (Ref. 69278):  .
Kwetsbaarheid (Ref. 59153):  Low vulnerability (16 of 100) .