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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335); frieli: Dedicated to Dr. John P. Friel, curator at the Cornell University Museum of Vertebrates, in recognition of his contribution to African ichthyology and for his care of the large collection of African electric fish deposited at CUMV; in addition John P. Friel is one of the collectors of this new species (Ref. 91772).
Eponymy: Dr John Patrick Friel is an American biologist and ichthyologist who is Curator of Fishes, Amphibians and Reptiles, Cornell University Museum of Vertebrates. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water demersaal. Tropical
Africa: upper Luapula and Chambezi River down to Lake Bangweulu (upper Congo River basin) in Zambia (Ref. 91772), and in Lake Mweru (Ref. 95585).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 9.1 cm SL mannelijk / geslacht onbekend; (Ref. 91772)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Diagnosis: Petrocephalus frieli is distinguished from all other Petrocephalus species of Central Africa by the following combination of characteristics: body coloration brownish without an intense subdorsal pigmentation mark; 21-24 branched rays in the dorsal fin and 28-30 branched rays in the anal fin; more than 13 scale rows between the anterior base of the anal fin and the lateral line; and three distinct electroreceptive rosettes on the head (Ref. 91772).
Body shape (shape guide): short and / or deep; Cross section: compressed.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Lavoué, S., 2012. Petrocephalus Marcusen, 1854 (Osteoglossomorpha: Mormyridae) of the Bangweulu-Mweru ecoregion (Luapula River system, Congo basin), with the description of a new species. J. Nat. Hist. 46(35-36):2159-2178. (Ref. 91772)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01622 (0.00679 - 0.03875), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (11 of 100). 🛈 |