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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Isichthys: Greek, isos = equal + Greek, ichthys = fish (Ref. 45335).
Eponymy: Joseph Henry (1797–1878) was the first Secretary of the Smithsonian Institution (1846– 1878). [...] (Ref. 128868), visit book page.
More on author: Gill.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale; pH range: 5.0 - ?. Tropical; 22°C - 24°C (Ref. 12468)
Africa: coastal basins of Guinea, Sierra Leone and Liberia (Ref. 81274) and the Niger basin through Cameroon and Gabon to the Kouilou River basin (Ref. 81635). Also in the Chiloango in Cabinda Province of Angola (Ref. 120641).
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 28.7 cm SL maschio/sesso non determinato; (Ref. 2915)
Possesses electroreceptors over the entire head, the dorsal region and some parts of the ventral region; absent from the side and the caudal peduncle where the electric organ is located. Electric organ discharge (EOD) rates are of low frequency and sexually dimorphic as to waveform (Ref. 10011).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
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Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00456 - 0.01448), b=2.70 (2.55 - 2.85), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.2 ±0.3 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 to moderate vulnerability (25 of 100).
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