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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); rosablanca: Named for the Rosablanca karstic formation where the type locality is found..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch; pH range: 7.9 - 8.1; diepte ? - 230 m (Ref. 119411). Tropical; ? - 15°C (Ref. 119411)
South America: Colombia (Las Sardinas and Caracol caves)..
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 10.3 cm SL mannelijk / geslacht onbekend; (Ref. 119411)
Korte beschrijving
Morfologie | Morfometrie
Wervels: 37. This species is distinguished by the advanced condition in the typical troglomorphisms found in other congeneric cave-dwelling species, such as the absence of eyes and pigmentation. It is distinguished by the following putative autapomorphies: presence of a circular foramen in the main body of the interopercle, dorsal to the interopercular plate supporting the odontodes; presence of a single sensory pore in the posteriormost section of the infraorbital canal; differs from its congeners known from Colombia by having the supraorbital canal interrupted in the nasal section, resulting in the pattern of s1, s2, s3, and s6 sensory pores, and the lachrimal/antorbital bone not enclosing the anteriormost section of the infraorbital canal (Ref. 119411).
Specimens of this species were collected at 230 m (dark section) inside the northern opening and in the epigean section of the interconnecting stream, while collecting efforts both in the epigean and hypogean systems failed to capture any other fish species in the region (Ref. 119411).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Mesa, LM., C.A. Lasso, L.E. Ochoa and C. DoNascimiento, 2018. Trichomycterus rosablanca (Siluriformes, Trichomycteridae) a new species of hipogean catfish from the Colombian Andes. Biota Colombiana 19(Sup. 1):95-226. (Ref. 119411)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Meer informatie
Lokale namenSynoniemenMetabolismePredatorenEcotoxicologieVoortplantingMaturiteitPaaienPaaiaggregatiesFecunditeitEierenOntwikkeling van de eieren
Leeftijd/GrootteGroeiLengte-gewichtLengte-lengteLengtefrequentiesMorfometrieMorfologieLarvenLarvale populatiedynamiekRekruteringAbundantieBRUVS
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaElectrophoresesErfelijkheidZiektesVerwerkingNutrientsMassaconversie
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00355 - 0.02043), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
