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Siluriformes (Catfishes) >
Auchenoglanididae (Flatnose catfishes)
Etymology: Parauchenoglanis: Greek, para = near + Greek, auchen = neck + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); stiassnyae: Named after Melanie L. J. Stiassny (MLJS) of the AMHN. MLJS is the initiator of the AMNH Congo Project.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale. Tropical
Africa: D.R. Congo.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 9.1 cm TL maschio/sesso non determinato; (Ref. 131888)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Vertebre: 28 - 29. This species is distinguished from its congeners by the following characters: total vertebrae 28-29; pre-anal vertebrae 13-14; narrow supraoccipital process-nuchal plate interdistance 1.4-2.9% HL; wide orbital head width 64.7-76.2%; wide mouth 37.8-50.8% HL; wide premaxillary toothplate 12.9-18.6% HL; wide head, head width 70.1-81.1% HL; short dorsal-fin spine 10.8-16% SL); small orbital diameter 9.5-14.2% HL), wide interpectoral distance 16.7-21.4%; short adipose-fin–caudal-fin interdistance 2.7-5.2% SL); narrow interorbital distance 19.5-27.1% HL (Ref. 131888).
Cross section: oval.
This species was collected in forested habitats over mud and plant debris in tributaries of the Mfimi River. The rivers where specimens were collected are characterized by a humic, moderately acidic (pH 4.1-5.3), dark-brown water with low conductivity (10–50 μS/1cm) , and low concentrations of dissolved solids (TDS: 10–30 mg/L). These parameters, combined with the species body colouration, suggest that this species is adapted to forested habitats, muddy, humic, and dark-brown waters of the Mfimi River tributaries (Ref. 131888).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Modimo, M.Y., M.J. Bernt, R.J.C. Iyaba, J.J.M.M. Mbimbi and T.L.D. Liyandja, 2024. Parauchenoglanis stiassnyae (Siluriformes:Auchenoglanididae): A new species of giraffe catfish from Mfimi-Lukeniebasin, central Africa, Democratic Republic of Congo. J. Fish Biol. 2024:1-13. (Ref. 131888)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
Rapporti speciali
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Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00219 - 0.01260), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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