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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Pollimyrus: Because of Dr. Max Poll, ichthyologist + Greek, myros, -ou = the male of the morey eel; marianne: Named in honor of Marianne Elfriede Kramer, mother of Bernd Kramer.
Eponymy: Dr Max Fernand Leon Poll (1908–1991) was a Belgian ichthyologist, and ‘connoisseur of the fish fauna’. [...] Marianne Elfriede Kramer (1914–2000) was the mother of senior author Bernd Kramer. (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water benthopelagisch. Tropical
Africa: upper Zambezi River in Namibia (Ref. 50438). Also in the Zambezi in Angola (Ref. 120641).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 7.3 cm SL mannelijk / geslacht onbekend; (Ref. 50438)
Found in fast-flowing areas of river with rapids and rocky bottom where there is little cover, except for crevices and rock holes, and also from dense reed beds on sandy bottoms and weak current (Ref. 50438).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Kramer, B., H. van der Bank, N. Flint, H. Sauer-Gürth and M. Wink, 2003. Evidence for parapatric speciation in the Mormyrid fish, Pollimyrus castelnaui (Boulenger, 1911), from the Okavango-Upper Zambezi River systems: P. Marianne sp. nov., defined by electric organ discharges, morphology and genetics. Environ. Biol. Fishes 67(1):47-70. (Ref. 50438)
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 ±0.3 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 (10 of 100). 🛈 |