Classificatie / Namen
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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; weyli: Named after the late Professor Dr. Olaf L.F. Weyl (1972–†2020) (SAIAB) for his contributions to African ichthyology and his work in the Buzi River system within the framework of his PhD, expanding the collections housed at SAIAB and increasing the understanding of the biodiversity in the region.
Eponymy: Dr Max Fernand Leon Poll (1908–1991) was a Belgian ichthyologist, and ‘connoisseur of the fish fauna’. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water pelagisch; diepte 0 - 1 m (Ref. 138541). Tropical
Africa: Mozambique.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 5.5 cm SL mannelijk / geslacht onbekend; (Ref. 138541)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 17; Anale zachte stralen: 21 - 23; Wervels: 38 - 39. This species is distinguished by the following characters: upper jaw wide, 22.6%-24.5% HL; caudal peduncle thick, 23.4%-23.8% BD; dorsal, anal and pectoral fins rounded; chin small; body deep, 29.6%-29.9% SL; head wide, 55.2%-58.7% HL; anal fin short, 20.2%-22.5% SL; pectoral fin short, 18.1%-19.6% SL; D 17 (Ref. 138541).
Body shape (shape guide): short and / or deep; Cross section: compressed.
The holotype was caught in a weed-filled non-flowing stream close to the main channel of the Buzi River, some 154 m a.s.l. The vegetation consisted mostly of a fine leafed Potamogeton (like Potamogeton pusillus) and a few water lilies (Nymphaea). Vegetation cover was close to 100%, where the specimen was caught by raking with a big hard-framed hand-net through the weeds. Water depth was less than 1 m with a mixed substrate of sand and rocks. The paratype, on the other hand, was caught in a lower-altitude tributary, at 138 m a.s.l., with a good flow, and completely covered over by emergent Phragmites; there was no submerged aquatic vegetation. It was collected by electrofishing with a Samus backpack at less than 1 m depth with a substrate of cobbles and banks undercut with a lot of rootstocks (Ref. 138541).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Dierickx, K., S.W. Lunkayilakio, R. Bills and E.J. Vreven, 2024. Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. J. Fish Biol. 106(3):846-892. (Ref. 138541)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
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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). 🛈 |