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> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335).
More on author: Valenciennes.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water demersaal; potamodroom (Ref. 51243). Tropical; 23°C - 26°C (Ref. 2060)

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Africa: Chad, Niger, Volta, Gambia and Senegal basins, including the Nile. Also known from Côte d'Ivoire (Ref. 272).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 6.8 range ? - ? cm
Max length : 11.5 cm SL mannelijk / geslacht onbekend; (Ref. 123661); max. gepubliceerd gewicht: 30.00 g (Ref. 123661); max. gerapporteerde leeftijd: 2.50 Jaren (Ref. 2749)

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Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 21 - 28; Anale stekels: 0; Anale zachte stralen: 27 - 35. body depth 2.9-3.7 x SL, anal base 3.2-4.7 x SL, caudal peduncle height 13.3-19.3 x SL. Eye diameter 2.7-4.6 x head length. Uniformly brilliant silver color, sometimes grayish or brownish.

Affinities: P. pellegrini. Generates electric organ discharge (EOD) of short duration that seems to correlate with aggregative behavior of the species (Ref. 14060; 10601). EOD temporal pattern cues have been shown to play a role in species recognition for P. bovei (Ref. 10600). A ratio measure between olfactory and visual receptor areas suggests that this species relies more on visual than olfactory information (Ref. 10839). A fractional spawner (Ref. 10605; 10606).

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Builds a nest for the eggs. No guarding or tending has been observed, though.

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Gosse, J.-P., 1984. Mormyridae. p. 63-122. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3203)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 04 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: van geen belang

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01479 (0.01137 - 0.01924), b=2.85 (2.80 - 2.90), in cm total length, based on LWR estimates for this species (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.3 ±0.0 se; based on diet studies.

Generation time: 2.1 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (K=0.53-1.10; tmax=2.5).

Fishing Vulnerability (Ref. 59153): Low vulnerability (13 of 100).

Petrocephalus bovei (Valenciennes, 1847)