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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..

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

; eau douce benthopélagique. Tropical

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Africa: upper Zambezi River in Namibia (Ref. 50438). Also in the Zambezi in Angola (Ref. 120641).

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 7.3 cm SL mâle / non sexé; (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).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 01 March 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00562 (0.00251 - 0.01261), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.2 ±0.3 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Pollimyrus marianne Kramer, van der Bank, Flint, Sauer-Gürth & Wink, 2003