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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); gorgona: Named for Gorgona Island, the type locality of this species..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water demersaal. Tropical
South America: Gorgona Island in Colombia.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm SL mannelijk / geslacht onbekend; (Ref. 55665)
Korte beschrijving
Morfologie | Morfometrie
Distinguished from all congeners in having a thick transverse skin flap between the pelvic fins. Further differs by the following combination of characters: presence of eight or nine paired ribs, reduced pigmentation, and eyes reduced to small ovoid dots. Shares features commonly observed among troglomorphs, yet is distinguished from troglobitic Trichomycterinae in having the maxillary barbel extending to the anterior pectoral-fin margin, nasal barbels reaching the opercular odontodes, three supraorbital pores on the head, eight pectoral-fin rays and the first ray prolonged as a filament, tip of adpressed pelvic-fin not reaching anal-fin origin, 39-40 vertebrae, eight to 13 opercular odontodes, 14-15 interopercular odontodes (Ref. 55665).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Fernández, L. and S.A. Schaefer, 2005. New Trichomycterus (Siluriformes: Trichomycteridae) from an offshore Island of Colombia. Copeia 2005(1):68-76. (Ref. 55665)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Meer informatie
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00319 - 0.02993), b=3.02 (2.77 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming Fec < 100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).