Classificatie / Names
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Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Sisorinae
Etymology: Bagarius: From the local name Vaghari, in Calcuta (Ref. 45335); rutilus: From the Latin rutilus, meaning red, a reference to the orange fins in life and an allusion to the type locality (Red river)..
More on authors: Ng & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water demersaal. Tropical
Asia: Nam Xam and Nam Ma basins in Laos and Red River basin in Viet Nam and Yunnan, China.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 100.0 cm SL mannelijk / geslacht onbekend; (Ref. 43281)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 1; Dorsale zachte stralen (totaal) : 6; Anale zachte stralen: 12 - 13; Wervels: 42 - 43. Can be differentiated from its congeners in the combination of following characters: skin heavily keratinized, cranium and interneural covered with numerous large, elongate tubercles, supraoccipital and interneural without sharp ridges, skin above neural spines anterior and posterior to adipose fin never forming distinct ridges, slender elongate neural spines, elliptical eyes, body depth at anus 11.0-12.3 %SL, head width 20.3-21.7 %SL, snout length 51.4-54.7 %HL, eye diameter 4.1-8.1 %HL; 12-13 pectoral-fin rays; caudal fin with 8-9 rays; 23-24 preanal vertebrae; adipose fin with short base and angular dorsal margin; dark yellow on dorsal and lateral surfaces of head and body, fading to light yellow on ventral region; dorsal surfaces of head and body with three darkly pigmented (brown) bands or blotches; a few small brown spots irregularly distributed throughout lighter parts of body; light yellow fins with a variable pattern of small brown spots distributed irregularly, orange fins in life (Ref. 37037). Adipose origin in front or above anal fin origin; longitudinal diameter of eye 12-24 times in HL (Ref. 43281).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Ng, H.H. and M. Kottelat, 2000. Descriptions of three new species of catfishes (Teleostei: Akysidae and Sisoridae) from Laos and Vietnam. J. South Asian Nat. Hist. 5(1):7-15. (Ref. 37037)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00307 - 0.01489), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (73 of 100).
