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Siluriformes (Catfishes) >
Schilbeidae (Schilbid catfishes)
Etymology: Irvineia: It is the name of a seaweed; orientalis: From the Latin "orientalis" (from the East) referring to the East African distribution of this species (Ref. 43912).
More on author: Trewavas.
Environment: milieu / climate zone / depth range / distribution range
Ecología
; agua dulce demersal. Tropical; 10°N - 0°N
Africa: rivers Juba and Uebi Shebeli in Somalia and Ethiopia (Ref. 43912).
Tamaño / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 50.2 cm SL macho / no sexado; (Ref. 43912)
Short description
Morfología | Morfometría
Espinas dorsales (total): 1; Radios blandos dorsales (total): 6. Diagnosis: adipose fin always present; posterior nostrils always closer to each other than anterior ones; 7-9 branched pelvic fin rays; nasal barbel at least reaching to midway between eye and opercle; posterior side (inner side) of pectoral spine feebly serrated; swim-bladder with posterior caecum which extends caudally on one side of body (dextrally or sinistrally) to posterior end of anal fin (Ref. 43912).
Feeds at least in part on insects (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Distinct pairing (Ref. 205).
De Vos, L., 1995. A systematic revision of the African Schilbeidae (Teleostei, Siluriformes). With an annotated bibliography. Ann. Mus. R. Afr. Centr., Sci. Zool., 271:1-450. (Ref. 43912)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Pesquerías:
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nivel trófico (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resiliencia (Ref.
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (45 of 100).